CVE-2026-62746: Win32k Information Disclosure Vulnerability
Buffer over-read in Windows Win32K allows an authorized attacker to disclose information locally.
CSIRTS triage
- What
- Buffer over-read allows authorized local disclosure of kernel information.
- Who is affected
- Windows systems with local authenticated users able to interact with Win32K.
- Urgency
- Medium severity; local information disclosure can support further privilege escalation or attacks.
- Action
- Apply Microsoft security patches for CVE-2026-62746 when available.
AI-assisted analysis generated from the source advisory — verify against the original.
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Details
Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-62746
Exploitation outlook
EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.
- Low exploitation riskCVE-2026-627460.39% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 32% of all EPSS-scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-62746 | coverage & exploitation status | NVD · CVE.org |
Same CVEs, other sources
How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.
- critical[NEW] [critical] Microsoft Windows Products: Multiple vulnerabilitiescert-bund
- unknownexploitedNCSC-2026-0284 [1.00] [M/H] Vulnerabilities patched in Microsoft Windowsncsc-nl
- mediumCVE-2026-62746: Buffer over-read in Windows Win32K allows an authorized attacker to disclose information local…nvd
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