CVE-2020-37167

HIGH

8.4

Description

ClamAV versions prior to 0.103.0-rc contain a vulnerability in function name processing through the ClamBC bytecode interpreter that allows attackers to manipulate bytecode function names. Attackers can exploit the weak input validation in function name encoding to potentially execute malicious bytecode or cause unexpected behavior in the ClamAV engine.

CVE Details

CVSS v3.1 Score8.4

SeverityHIGH

CVSS VectorCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack VectorLOCAL

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published2/12/2026

Last Modified2/27/2026

Sourcenvd

Honeypot Sightings0

References

https://github.com/Cisco-Talos/clamav/commit/cd2f2975b93277de7f74464d48adb378375a305f(disclosure@vulncheck.com)

https://www.clamav.net/(disclosure@vulncheck.com)

https://www.exploit-db.com/exploits/47687(disclosure@vulncheck.com)

https://www.vulncheck.com/advisories/clamav-clambc-clambc-executable-regular-expression-error(disclosure@vulncheck.com)

IOC Correlations

No correlations recorded

This product uses data from the NVD API but is not endorsed or certified by the NVD.