CVE-2026-69496: Windows Compressed Folder Remote Code Execution Vulnerability
Heap-based buffer overflow in Windows Compressed Folder allows an unauthorized attacker to execute code over a network.
Details
Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69496
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-2026-694961.00% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 61% of all EPSS-scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-69496 | coverage & exploitation status | NVD · CVE.org |
Same CVEs, other sources
How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.
- unknownexploitedNCSC-2026-0353 [1.01] [M/H] Kwetsbaarheden verholpen in Microsoft Windowsncsc-nl
- unknownNCSC-2026-0353 [1.00] [M/H] Kwetsbaarheden verholpen in Microsoft Windowsncsc-nl
- criticalCVE-2026-69496: Heap-based buffer overflow in Windows Compressed Folder allows an unauthorized attacker to exe…nvd
Recent advisories for Windows Compressed Folder
A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.
- mediumCVE-2026-70019: Windows hard link in Windows Compressed Folder allows an unauthorized attacker to disclose inf…nvd · 2026-09-08
- criticalCVE-2026-69496: Heap-based buffer overflow in Windows Compressed Folder allows an unauthorized attacker to exe…nvd · 2026-09-08
- highCVE-2026-69445: Improper limitation of a pathname to a restricted directory ('path traversal') in Windows Comp…nvd · 2026-09-08
- highCVE-2026-69445: Windows Compressed Folder Elevation of Privilege Vulnerabilitymsrc · 2026-09-08
- mediumCVE-2026-70019: Windows Compressed Folder Information Disclosure Vulnerabilitymsrc · 2026-09-08
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