{"id":"CVE-2020-37167","title":"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","summary":"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 …","severity":"high","cvss":8.4,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","vendor":"ClamAV","product":"ClamBC","affected":["ClamBC < 0.103.0-rc"],"published":"2026-02-12","updated":"2026-09-30","sourceUpdated":"2026-09-30T18:17:52.143","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2020-37167","references":[{"url":"https://github.com/Cisco-Talos/clamav/commit/cd2f2975b93277de7f74464d48adb378375a305f","label":"disclosure@vulncheck.com"},{"url":"https://www.clamav.net/","label":"disclosure@vulncheck.com"},{"url":"https://www.exploit-db.com/exploits/47687","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/clamav-clambc-clambc-executable-regular-expression-error","label":"disclosure@vulncheck.com"}],"tags":["nvd","cve.org","exploit-available"],"epss":0.00179,"epssPercentile":0.06683,"exploitAvailable":true,"ssvc":{"exploitation":"poc","automatable":"yes","technicalImpact":"total","timestamp":"2026-02-13T17:08:35.606676Z"},"ingestedAt":"2026-09-30T18:17:24.568Z","slug":"CVE-2020-37167","body":"## Overview\n\nClamAV 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"midnight","depthScore":58,"depthScoreParts":{"impact":46.2,"likelihood":0,"exploitation":12,"ransomware":0},"changes":[]}