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Microsoft Security Response CenterCVE-2026-39856

osslsigncode has an Out-of-Bounds Read via Unvalidated Section Bounds in PE Page Hash Calculation

Mariner

Read the vendor bulletin Get alerts for cbl2 osslsigncode 2.7-1 on CBL Mariner
5.5CVSS out of 10Medium severity
Scope

What the vendor says is affected

  • cbl2 osslsigncode 2.7-1 on CBL Mariner 2.0
Timeline

When this advisory changed

  1. Published by Microsoft Security Response Center

    The publication date reported by the vendor.

  2. Updated by Microsoft Security Response Center

    The vendor changed the advisory after it was first published.

  3. Added to SecurityAlert

    We collected the advisory from the official source.

Vulnerabilities

CVEs named in this advisory

CVE-2026-39856View CVSS, KEV, EPSS, and threat context
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