CVE-2022-20792
highpriority · track · 31EPSS 0.006 · 47 %ileEURUUSEPSS · scored 2026-10-27
A vulnerability in the regex module used by the signature database load module of Clam AntiVirus (ClamAV) versions 0.104.0 through 0.104.2 and LTS version 0.103.5 and prior versions could allow an authenticated, local attacker to crash ClamAV at database load time, and possibly gain code execution. The vulnerability is due to improper bounds checking that may result in a multi-byte heap buffer overwflow write. An attacker could exploit this vulnerability by placing a crafted CDB ClamAV signature database file in the ClamAV database directory. An exploit could allow the attacker to run code as the clamav user.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 7.1–9.8
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (9)
Products and version ranges known to be affected.
also known as (4)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (17)
External citations — patches, advisories, analysis.
- http://blog.clamav.net/2022/05/clamav-01050-01043-01036-released.htmlPatchcnnvd
- https://blog.clamav.net/2022/05/clamav-01050-01043-01036-released.htmlcnnvd
- https://cxsecurity.com/cveshow/CVE-2022-20792/cnnvd
- https://packetstormsecurity.com/files/167199/Ubuntu-Security-Notice-USN-5423-1.htmlcnnvd
- https://packetstormsecurity.com/files/167211/Ubuntu-Security-Notice-USN-5423-2.htmlcnnvd
- https://security.gentoo.org/glsa/202310-01cnnvd
- https://vigilance.fr/vulnerability/ClamAV-multiple-vulnerabilities-38245cnnvd
- https://www.auscert.org.au/bulletins/ESB-2022.2362cnnvd
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