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TI-2023-18242 Aliases CVE-2023-36377GHSA-hgrq-rjwf-5f46

Buffer Overflow vulnerability in mtrojnar osslsigncode v.2.3 and before allows a local…

Priority LOW 36CWE-120Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-120 and the CVSS impact.

Summary

Buffer Overflow vulnerability in mtrojnar osslsigncode v.2.3 and before allows a local attacker to execute arbitrary code via a crafted .exe, .sys, and .dll files.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.003 22nd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:osslsigncode_project:osslsigncode:2.3:*:*:*:*:*:*:*2.3Vulnerablemtrojnar
  • cpe:2.3:a:osslsigncode_project:osslsigncode:2.3:*:*:*:*:*:*:* Versions 2.3 Vulnerable ·mtrojnar

Remediation

No fixed version listed by the sources yet.

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-36377
  2. 2026-10-03 Alias added: GHSA-hgrq-rjwf-5f46

References

Other 3

  • TI-2025-43157 An issue in mtrojnar Osslsigncode affected at v2.10 and before allows a remote attacker… CVSS 3.1CRITICAL 9.8
  • TI-2026-28735 osslsigncode has a Stack Buffer Overflow via Unbounded Digest Copy During Signature Verification CVSS 3.1HIGH 7.8
  • TI-2026-28737 osslsigncode has an Out-of-Bounds Read via Unvalidated Section Bounds in PE Page Hash Calculation CVSS 3.1MEDIUM 5.5
  • TI-2026-28736 osslsigncode has an Integer Underflow in PE Page Hash Calculation Can Cause Out-of-Bounds Read CVSS 3.1MEDIUM 5.5

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences