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Breaking patchedCVE-2026-102764 · KEV

China-Linked Hackers Exploited BeyondTrust Zero-Day to Take Over Remote Support Servers

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The China-nexus cyber espionage group Armory Castle, also known as UNC5221 or Warp Panda, exploited CVE-2026-102764 in late August 2026. The vulnerability has a CVSS score of 9.3 and involves improper origin validation in an internal messaging component that could be exploited. Organizations should monitor BeyondTrust Remote Support for updates.

Sources

Story so far

  1. ARMORY CASTLE Exploits BeyondTrust – Google Threat Intelligence
    first report, added to CISA KEV
  2. BeyondTrust patches zero-day exploited in attacks since August – BleepingComputer
    exploited in attacks, patch / fix released
  3. China-Linked Hackers Exploited BeyondTrust Zero-Day to Take Over Remote Support Servers – The Hacker News
    attacker named
  4. China Espionage Actor Actively Targeting Critical BeyondTrust Flaw, Google Warns – Infosecurity Magazine
  5. BeyondTrust zero-day tied to Chinese spies puts Remote Support users on alert – CSO Online
  6. Chinese APT Exploited BeyondTrust Vulnerability as Zero-Day – SecurityWeek
  7. Suspected Chinese espionage attackers abusing BeyondTrust IT support zero-day – The Record
  8. China-nexus espionage actor targets BeyondTrust support tool in zero-day campaign – Cybersecurity Dive
  9. Prolific Chinese espionage group exploits BeyondTrust zero-day – CyberScoop
  10. BeyondTrust Remote Support Zero-Day Continues Trend of Exploited Edge Bugs – Dark Reading

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