INSPECTING ARCHIVED INTELLIGENCE (OUTDATED VERSION).

VMware ESX Zero-Day Exploited by China-Linked Hackers via VMware

| 2026-11-03 23:03 HIGH HIGH EXPLOITED VULNERABILITY VULNERABILITY DISCLOSURE STATE-SPONSORED & ESPIONAGE
JSON
Executive Summary
AI-generated
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Wednesday added a security flaw impacting Broadcom VMware ESX to its Known Exploited Vulnerabilities ( KEV ) catalog, after CrowdStrike revealed that it had been weaponized by a China-nexus threat actor known as Warp Panda in attacks targeting the U.S. legal sector. The vulnerability in question is CVE-2026-41709 (CVSS score: 2.7), an insufficient logging vulnerability that could permit a malicious actor with admin access to perform certain operations without being logged.
Technical Mitigations AI-generated
• Apply the vendor fix for CVE-2026-41709, CVE-2026-102764 and treat internet-facing systems that were not patched in time as potentially compromised until verified.
Intelligence Metadata
Actors / Malware / CVEs / Campaigns
CVE-2026-41709CVE-2026-41709 CVE-2026-102764CVE-2026-102764
Target & Sectors
US
legallegal defensedefense
Incident Timeline
‎early 2026
Warp Panda exploited the zero-day vulnerability CVE-2026-41709 in early 2026, targeting VMware ESXi and other affected products.
vulnerability CVE-2026-41709
…undation SXi-9.1.0.0-25370933 and ESXi-9.0.2.0100-25595025 VMware ESX ESXi80U3j-25429389 VMware Cloud Foundation 5.2.4 VMware Telco Cloud Platform ESXi80U3j-25429389 The development comes in response to CrowdStrike's 2026 Legal Threat Landscape Report , which revealed that Warp Panda had exploited CVE-2026-41709 as a zero-day in early 2026 with an aim to reduce audit trail visibility.
organisation VMWare
…undation SXi-9.1.0.0-25370933 and ESXi-9.0.2.0100-25595025 VMware ESX ESXi80U3j-25429389 VMware Cloud Foundation 5.2.4 VMware Telco Cloud Platform ESXi80U3j-25429389 The development comes in response to CrowdStrike's 2026 Legal Threat Landscape Report , which revealed that Warp Panda had exploited CVE-2026-41709 as a zero-day in early 2026 with an aim to reduce audit trail visibility.
infrastructure 9.1.0
…undation SXi-9.1.0.0-25370933 and ESXi-9.0.2.0100-25595025 VMware ESX ESXi80U3j-25429389 VMware Cloud Foundation 5.2.4 VMware Telco Cloud Platform ESXi80U3j-25429389 The development comes in response to CrowdStrike's 2026 Legal Threat Landscape Report , which revealed that Warp Panda had exploited CVE-2026-41709 as a zero-day in early 2026 with an aim to reduce audit trail visibility.
infrastructure 9.0.2
…undation SXi-9.1.0.0-25370933 and ESXi-9.0.2.0100-25595025 VMware ESX ESXi80U3j-25429389 VMware Cloud Foundation 5.2.4 VMware Telco Cloud Platform ESXi80U3j-25429389 The development comes in response to CrowdStrike's 2026 Legal Threat Landscape Report , which revealed that Warp Panda had exploited CVE-2026-41709 as a zero-day in early 2026 with an aim to reduce audit trail visibility.
infrastructure 5.2.4
…undation SXi-9.1.0.0-25370933 and ESXi-9.0.2.0100-25595025 VMware ESX ESXi80U3j-25429389 VMware Cloud Foundation 5.2.4 VMware Telco Cloud Platform ESXi80U3j-25429389 The development comes in response to CrowdStrike's 2026 Legal Threat Landscape Report , which revealed that Warp Panda had exploited CVE-2026-41709 as a zero-day in early 2026 with an aim to reduce audit trail visibility.
organisation Broadcom
…undation SXi-9.1.0.0-25370933 and ESXi-9.0.2.0100-25595025 VMware ESX ESXi80U3j-25429389 VMware Cloud Foundation 5.2.4 VMware Telco Cloud Platform ESXi80U3j-25429389 The development comes in response to CrowdStrike's 2026 Legal Threat Landscape Report , which revealed that Warp Panda had exploited CVE-2026-41709 as a zero-day in early 2026 with an aim to reduce audit trail visibility.
organisation VMware Cloud Foundation
…undation SXi-9.1.0.0-25370933 and ESXi-9.0.2.0100-25595025 VMware ESX ESXi80U3j-25429389 VMware Cloud Foundation 5.2.4 VMware Telco Cloud Platform ESXi80U3j-25429389 The development comes in response to CrowdStrike's 2026 Legal Threat Landscape Report , which revealed that Warp Panda had exploited CVE-2026-41709 as a zero-day in early 2026 with an aim to reduce audit trail visibility.
organisation VMware vSphere Foundation SXi-9.1.0.0-25370933
…undation SXi-9.1.0.0-25370933 and ESXi-9.0.2.0100-25595025 VMware ESX ESXi80U3j-25429389 VMware Cloud Foundation 5.2.4 VMware Telco Cloud Platform ESXi80U3j-25429389 The development comes in response to CrowdStrike's 2026 Legal Threat Landscape Report , which revealed that Warp Panda had exploited CVE-2026-41709 as a zero-day in early 2026 with an aim to reduce audit trail visibility.
general_metric 25370933 following Foundation SXi-9.1.0.0
…undation SXi-9.1.0.0-25370933 and ESXi-9.0.2.0100-25595025 VMware ESX ESXi80U3j-25429389 VMware Cloud Foundation 5.2.4 VMware Telco Cloud Platform ESXi80U3j-25429389 The development comes in response to CrowdStrike's 2026 Legal Threat Landscape Report , which revealed that Warp Panda had exploited CVE-2026-41709 as a zero-day in early 2026 with an aim to reduce audit trail visibility.
‎July 2026
Warp Panda exploited the zero-day vulnerability CVE-2026-41709 in VMware ESXi versions 9.0.2 and SXi-9.1.0.0 to reduce audit trail visibility, prompting a high-risk attack vector that requires an urgent defense system.
vulnerability CVE-2026-41709
…undation SXi-9.1.0.0-25370933 and ESXi-9.0.2.0100-25595025 VMware ESX ESXi80U3j-25429389 VMware Cloud Foundation 5.2.4 VMware Telco Cloud Platform ESXi80U3j-25429389 The development comes in response to CrowdStrike's 2026 Legal Threat Landscape Report , which revealed that Warp Panda had exploited CVE-2026-41709 as a zero-day in early 2026 with an aim to reduce audit trail visibility.
organisation VMWare
…undation SXi-9.1.0.0-25370933 and ESXi-9.0.2.0100-25595025 VMware ESX ESXi80U3j-25429389 VMware Cloud Foundation 5.2.4 VMware Telco Cloud Platform ESXi80U3j-25429389 The development comes in response to CrowdStrike's 2026 Legal Threat Landscape Report , which revealed that Warp Panda had exploited CVE-2026-41709 as a zero-day in early 2026 with an aim to reduce audit trail visibility.
infrastructure 9.1.0
…undation SXi-9.1.0.0-25370933 and ESXi-9.0.2.0100-25595025 VMware ESX ESXi80U3j-25429389 VMware Cloud Foundation 5.2.4 VMware Telco Cloud Platform ESXi80U3j-25429389 The development comes in response to CrowdStrike's 2026 Legal Threat Landscape Report , which revealed that Warp Panda had exploited CVE-2026-41709 as a zero-day in early 2026 with an aim to reduce audit trail visibility.
infrastructure 9.0.2
…undation SXi-9.1.0.0-25370933 and ESXi-9.0.2.0100-25595025 VMware ESX ESXi80U3j-25429389 VMware Cloud Foundation 5.2.4 VMware Telco Cloud Platform ESXi80U3j-25429389 The development comes in response to CrowdStrike's 2026 Legal Threat Landscape Report , which revealed that Warp Panda had exploited CVE-2026-41709 as a zero-day in early 2026 with an aim to reduce audit trail visibility.
infrastructure 5.2.4
…undation SXi-9.1.0.0-25370933 and ESXi-9.0.2.0100-25595025 VMware ESX ESXi80U3j-25429389 VMware Cloud Foundation 5.2.4 VMware Telco Cloud Platform ESXi80U3j-25429389 The development comes in response to CrowdStrike's 2026 Legal Threat Landscape Report , which revealed that Warp Panda had exploited CVE-2026-41709 as a zero-day in early 2026 with an aim to reduce audit trail visibility.
organisation Broadcom
…undation SXi-9.1.0.0-25370933 and ESXi-9.0.2.0100-25595025 VMware ESX ESXi80U3j-25429389 VMware Cloud Foundation 5.2.4 VMware Telco Cloud Platform ESXi80U3j-25429389 The development comes in response to CrowdStrike's 2026 Legal Threat Landscape Report , which revealed that Warp Panda had exploited CVE-2026-41709 as a zero-day in early 2026 with an aim to reduce audit trail visibility.
organisation VMware Cloud Foundation
…undation SXi-9.1.0.0-25370933 and ESXi-9.0.2.0100-25595025 VMware ESX ESXi80U3j-25429389 VMware Cloud Foundation 5.2.4 VMware Telco Cloud Platform ESXi80U3j-25429389 The development comes in response to CrowdStrike's 2026 Legal Threat Landscape Report , which revealed that Warp Panda had exploited CVE-2026-41709 as a zero-day in early 2026 with an aim to reduce audit trail visibility.
organisation VMware vSphere Foundation SXi-9.1.0.0-25370933
…undation SXi-9.1.0.0-25370933 and ESXi-9.0.2.0100-25595025 VMware ESX ESXi80U3j-25429389 VMware Cloud Foundation 5.2.4 VMware Telco Cloud Platform ESXi80U3j-25429389 The development comes in response to CrowdStrike's 2026 Legal Threat Landscape Report , which revealed that Warp Panda had exploited CVE-2026-41709 as a zero-day in early 2026 with an aim to reduce audit trail visibility.
general_metric 25370933 following Foundation SXi-9.1.0.0
…undation SXi-9.1.0.0-25370933 and ESXi-9.0.2.0100-25595025 VMware ESX ESXi80U3j-25429389 VMware Cloud Foundation 5.2.4 VMware Telco Cloud Platform ESXi80U3j-25429389 The development comes in response to CrowdStrike's 2026 Legal Threat Landscape Report , which revealed that Warp Panda had exploited CVE-2026-41709 as a zero-day in early 2026 with an aim to reduce audit trail visibility.
‎Oct 29, 2026
Threat actors known as Warp Panda, associated with China, weaponized a security flaw in Broadcom VMware ESX to target the U.S. legal sector.
tactic T1588.006 - Vulnerabilities
…Lakshmanan  Oct 29, 2026 Vulnerability / Cyber Espionage The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Wednesday added a security flaw impacting Broadcom VMware ESX to its Known Exploited Vulnerabilities ( KEV ) catalog, after CrowdStrike revealed that it had been weaponized by a China-nexus threat actor known as Warp Panda in attacks targeting the U.S. legal sector.
source_region China
…Lakshmanan  Oct 29, 2026 Vulnerability / Cyber Espionage The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Wednesday added a security flaw impacting Broadcom VMware ESX to its Known Exploited Vulnerabilities ( KEV ) catalog, after CrowdStrike revealed that it had been weaponized by a China-nexus threat actor known as Warp Panda in attacks targeting the U.S. legal sector.
tactic Espionage
…Lakshmanan  Oct 29, 2026 Vulnerability / Cyber Espionage The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Wednesday added a security flaw impacting Broadcom VMware ESX to its Known Exploited Vulnerabilities ( KEV ) catalog, after CrowdStrike revealed that it had been weaponized by a China-nexus threat actor known as Warp Panda in attacks targeting the U.S. legal sector.
organisation Vulnerability / Cyber Espionage
…Lakshmanan  Oct 29, 2026 Vulnerability / Cyber Espionage The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Wednesday added a security flaw impacting Broadcom VMware ESX to its Known Exploited Vulnerabilities ( KEV ) catalog, after CrowdStrike revealed that it had been weaponized by a China-nexus threat actor known as Warp Panda in attacks targeting the U.S. legal sector.
organisation Broadcom VMware ESX
…Lakshmanan  Oct 29, 2026 Vulnerability / Cyber Espionage The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Wednesday added a security flaw impacting Broadcom VMware ESX to its Known Exploited Vulnerabilities ( KEV ) catalog, after CrowdStrike revealed that it had been weaponized by a China-nexus threat actor known as Warp Panda in attacks targeting the U.S. legal sector.
organisation Known Exploited
…Lakshmanan  Oct 29, 2026 Vulnerability / Cyber Espionage The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Wednesday added a security flaw impacting Broadcom VMware ESX to its Known Exploited Vulnerabilities ( KEV ) catalog, after CrowdStrike revealed that it had been weaponized by a China-nexus threat actor known as Warp Panda in attacks targeting the U.S. legal sector.
organisation KEV
…Lakshmanan  Oct 29, 2026 Vulnerability / Cyber Espionage The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Wednesday added a security flaw impacting Broadcom VMware ESX to its Known Exploited Vulnerabilities ( KEV ) catalog, after CrowdStrike revealed that it had been weaponized by a China-nexus threat actor known as Warp Panda in attacks targeting the U.S. legal sector.
organisation CrowdStrike
…Lakshmanan  Oct 29, 2026 Vulnerability / Cyber Espionage The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Wednesday added a security flaw impacting Broadcom VMware ESX to its Known Exploited Vulnerabilities ( KEV ) catalog, after CrowdStrike revealed that it had been weaponized by a China-nexus threat actor known as Warp Panda in attacks targeting the U.S. legal sector.
industry Defense
General Document Context
industry Legal
General Document Context
‎2026/11/03
Threat actors, tracked as Armory Castle and VerdantBamboo, exploited the CVE-2026-41709 insufficient logging vulnerability in Hyper-V to gain administrative access.
infrastructure Linux
The ransomware group Quilin exploited this vulnerability by using the VMWare PowerCLI to reset the root password of an ESXi host, activate SSH, and then upload a Linux encryption tool directly to the hypervisor and encrypt it.
This solution provides preemptive and advanced agent-based runtime security for the entire Hyper-V platform, based on Linux and KVM-based Hyper-V.
organisation VMWare
A widely exploited Hyper-V vulnerability In the past month, the US Cybersecurity and Infrastructure Security Agency (CISA) added the VMWare ESX Hyper-V vulnerability (CVE-2026-41709) to its 'Known Exploited Vulnerabilities' list.
organisation Hyundai Data Center
[DataNet] The Hyper-V layer plays a crucial role in operating Hyundai Data Center and cloud computing infrastructure.
organisation • Exploiting
• Exploiting existing system tools (Live off the land):
organisation Hyper-V
Independent visibility, not relying solely on Hyper-V internal logs, is crucial.
infrastructure Ivanti
" The threat actor, also tracked as Armory Castle (formerly UNC5221), Clay Typhoon, and VerdantBamboo, has a storied history of weaponizing zero-day vulnerabilities in Citrix NetScaler and Ivanti Connect Secure devices.
organisation VerdantBamboo
" The threat actor, also tracked as Armory Castle (formerly UNC5221), Clay Typhoon, and VerdantBamboo, has a storied history of weaponizing zero-day vulnerabilities in Citrix NetScaler and Ivanti Connect Secure devices.
organisation Citrix NetScaler
" The threat actor, also tracked as Armory Castle (formerly UNC5221), Clay Typhoon, and VerdantBamboo, has a storied history of weaponizing zero-day vulnerabilities in Citrix NetScaler and Ivanti Connect Secure devices.
organisation Ivanti Connect Secure
" The threat actor, also tracked as Armory Castle (formerly UNC5221), Clay Typhoon, and VerdantBamboo, has a storied history of weaponizing zero-day vulnerabilities in Citrix NetScaler and Ivanti Connect Secure devices.
organisation Google
Earlier this month, Google-owned Mandiant also attributed the hacking crew to the zero-day exploitation of a critical improper origin validation in BeyondTrust Remote Support ( CVE-2026-102764 , CVSS score: 9.3) to deliver malware families like SAWFLY and BARECLAW.
organisation Mandiant
Earlier this month, Google-owned Mandiant also attributed the hacking crew to the zero-day exploitation of a critical improper origin validation in BeyondTrust Remote Support ( CVE-2026-102764 , CVSS score: 9.3) to deliver malware families like SAWFLY and BARECLAW.
organisation CVSS
Earlier this month, Google-owned Mandiant also attributed the hacking crew to the zero-day exploitation of a critical improper origin validation in BeyondTrust Remote Support ( CVE-2026-102764 , CVSS score: 9.3) to deliver malware families like SAWFLY and BARECLAW.
organisation SAWFLY
Earlier this month, Google-owned Mandiant also attributed the hacking crew to the zero-day exploitation of a critical improper origin validation in BeyondTrust Remote Support ( CVE-2026-102764 , CVSS score: 9.3) to deliver malware families like SAWFLY and BARECLAW.
organisation BARECLAW
Earlier this month, Google-owned Mandiant also attributed the hacking crew to the zero-day exploitation of a critical improper origin validation in BeyondTrust Remote Support ( CVE-2026-102764 , CVSS score: 9.3) to deliver malware families like SAWFLY and BARECLAW.
infrastructure Microsoft 365
Select intrusions have also involved the targeting of cloud services with an aim to extract user session tokens to access Microsoft 365 environments sans raising any credential-based alerts.
organisation Select
Select intrusions have also involved the targeting of cloud services with an aim to extract user session tokens to access Microsoft 365 environments sans raising any credential-based alerts.
organisation Microsoft
Select intrusions have also involved the targeting of cloud services with an aim to extract user session tokens to access Microsoft 365 environments sans raising any credential-based alerts.
organisation The Hacker News
Warp Panda "exploits internet-facing edge devices using zero-day vulnerabilities and custom malware to maintain covert, persistent access," it said in the report shared with The Hacker News, adding the adversary "actively circumvents detection by bypassing audit logging, harvesting cloud session tokens, and registering rogue multi-factor authentication (MFA) devices.
organisation MFA
Warp Panda "exploits internet-facing edge devices using zero-day vulnerabilities and custom malware to maintain covert, persistent access," it said in the report shared with The Hacker News, adding the adversary "actively circumvents detection by bypassing audit logging, harvesting cloud session tokens, and registering rogue multi-factor authentication (MFA) devices.
Tactical Metrics
Metrics
infrastructure
‎Linux
Affected Product
The ransomware group Quilin exploited this vulnerability by using the VMWare PowerCLI to reset the root password of an ESXi host, activate SSH, and then upload a Linux encryption tool directly to the hypervisor and encrypt it.
This solution provides preemptive and advanced agent-based runtime security for the entire Hyper-V platform, based on Linux and KVM-based Hyper-V.
Metrics
infrastructure
‎9.1.0
Software Version
…undation SXi-9.1.0.0-25370933 and ESXi-9.0.2.0100-25595025 VMware ESX ESXi80U3j-25429389 VMware Cloud Foundation 5.2.4 VMware Telco Cloud Platform ESXi80U3j-25429389 The development comes in response to CrowdStrike's 2026 Legal Threat Landscape Report , which revealed that Warp Panda had exploited CVE-2026-41709 as a zero-day in early 2026 with an aim to reduce audit trail visibility.
Metrics
infrastructure
‎9.0.2
Software Version
…undation SXi-9.1.0.0-25370933 and ESXi-9.0.2.0100-25595025 VMware ESX ESXi80U3j-25429389 VMware Cloud Foundation 5.2.4 VMware Telco Cloud Platform ESXi80U3j-25429389 The development comes in response to CrowdStrike's 2026 Legal Threat Landscape Report , which revealed that Warp Panda had exploited CVE-2026-41709 as a zero-day in early 2026 with an aim to reduce audit trail visibility.
Metrics
infrastructure
‎5.2.4
Software Version
…undation SXi-9.1.0.0-25370933 and ESXi-9.0.2.0100-25595025 VMware ESX ESXi80U3j-25429389 VMware Cloud Foundation 5.2.4 VMware Telco Cloud Platform ESXi80U3j-25429389 The development comes in response to CrowdStrike's 2026 Legal Threat Landscape Report , which revealed that Warp Panda had exploited CVE-2026-41709 as a zero-day in early 2026 with an aim to reduce audit trail visibility.
Metrics
infrastructure
‎Ivanti
Affected Product
" The threat actor, also tracked as Armory Castle (formerly UNC5221), Clay Typhoon, and VerdantBamboo, has a storied history of weaponizing zero-day vulnerabilities in Citrix NetScaler and Ivanti Connect Secure devices.
Metrics
infrastructure
‎Microsoft 365
Affected Product
Select intrusions have also involved the targeting of cloud services with an aim to extract user session tokens to access Microsoft 365 environments sans raising any credential-based alerts.
Intelligence Sources
The Hacker News 2026-10-29
Datanet 2026-11-03