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CVE-2026-39853

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high advisory

osslsigncode Stack Buffer Overflow Vulnerability (CVE-2026-39853)

A stack buffer overflow vulnerability (CVE-2026-39853) exists in osslsigncode versions prior to 2.12 due to insufficient validation of digest length during PKCS#7 signature verification, potentially leading to arbitrary code execution.

osslsigncode buffer-overflow authenticode code-signing CVE-2026-39853
2r 1t 1c