Zoom Workplace Windows Privilege Escalation Flaws Patched
Zoom patched two Windows client vulnerabilities allowing unauthenticated remote attackers to escalate privileges via origin/input validation errors.
Sourceadvisories.ncsc.nl — open the original
What to check
- Applies to
- The 2 CVEs named below. Whether you run an affected version is not assessed: check the versions the source lists.
- Exploitation
- No exploitation in the wild and no public exploit is recorded for the CVEs named.
NCSC-NL published an advisory on two vulnerabilities patched by Zoom in its Zoom Workplace client for Windows. Both flaws stem from improper origin and input validation, allowing a network-based, unauthenticated attacker to escalate privileges remotely, potentially compromising system integrity.
The two CVEs are CVE-2026-108187 (CVSS 8.1) and CVE-2026-108186 (CVSS 9.6), the latter being particularly severe given the unauthenticated, remote nature of exploitation. No evidence of active in-the-wild exploitation is mentioned in the advisory. Zoom has released updates addressing both issues; defenders should prioritize patching Windows Zoom Workplace clients given the high CVSS scores and remote unauthenticated attack vector.
Defenders running Zoom Workplace on Windows endpoints should verify client versions against Zoom's official release notes and apply the latest updates promptly, particularly given the critical-range CVSS score for CVE-2026-108186.
Mentioned in this report
Source reporting: https://advisories.ncsc.nl/2026/ncsc-2026-0494.html
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