Arbitrary Code Injection The advisory has been revoked - it doesn't affect any version of package libclamunrar (opens in a new tab)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-UBUNTU1804-LIBCLAMUNRAR-15356530
- published26 Feb 2026
- disclosed12 Feb 2026
Introduced: 12 Feb 2026
CVE-2020-37167 (opens in a new tab)Amendment
The Ubuntu security team deemed this advisory irrelevant for Ubuntu:18.04.
NVD Description
Note: Versions mentioned in the description apply only to the upstream libclamunrar package and not the libclamunrar package as distributed by Ubuntu.
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.
References
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2020-37167
- https://www.clamav.net/
- https://www.exploit-db.com/exploits/47687
- https://www.vulncheck.com/advisories/clamav-clambc-clambc-executable-regular-expression
- https://www.vulncheck.com/advisories/clamav-clambc-clambc-executable-regular-expression-error
- https://github.com/Cisco-Talos/clamav/commit/cd2f2975b93277de7f74464d48adb378375a305f