CVE-2023-36377

HIGHNVD 7.87.8—

7.8

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.

CVSS v3: 7.8
EG Score: 7.8(medium)
EPSS: 35.4%
KEV: Not listed

Published

July 3, 2023

Last Modified

December 30, 2025

References (7)

cve@mitrehttps://github.com/mtrojnar/osslsigncode/compare/2.2...2.3
cve@mitrehttps://github.com/mtrojnar/osslsigncode/releases/tag/2.3
cve@mitrehttps://lists.debian.org/debian-lts-announce/2023/12/msg00016.html
af854a3a-2127-422b-91ae-364da2661108https://github.com/mtrojnar/osslsigncode/compare/2.2...2.3
af854a3a-2127-422b-91ae-364da2661108https://github.com/mtrojnar/osslsigncode/releases/tag/2.3
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2023/12/msg00016.html
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2025/12/msg00037.html

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-120Buffer Copy without Checking Size (Classic Buffer Overflow)

Data Freshness Timeline

(refreshed 18× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

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Frequently asked(5)

What is CVE-2023-36377?

CVE-2023-36377 is a high vulnerability published on July 3, 2023. 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.

When was CVE-2023-36377 disclosed?

CVE-2023-36377 was first published in the National Vulnerability Database on July 3, 2023, with the most recent update on December 30, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2023-36377 actively exploited?

CVE-2023-36377 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 35.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2023-36377?

CVE-2023-36377 has a CVSS v3 base score of 7.8 (NVD).

How do I remediate CVE-2023-36377?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-36377, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-2023-36377

📅 Published

🔄 Last Modified

🔗 References (7)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2023-36377?

🔗 Related CVEs(same CWE)

Same CWE

Published

Last Modified

References (7)

Frequently asked(5)

Related CVEs(same CWE)