CVE-2022-20796
mediumpriority · track · 22EPSS 0.004 · 33 %ileEURUUSEPSS · scored 2026-10-27
On May 4, 2022, the following vulnerability in the ClamAV scanning library versions 0.103.5 and earlier and 0.104.2 and earlier was disclosed: A vulnerability in Clam AntiVirus (ClamAV) versions 0.103.4, 0.103.5, 0.104.1, and 0.104.2 could allow an authenticated, local attacker to cause a denial of service condition on an affected device. For a description of this vulnerability, see the ClamAV blog.
remediations
Vendor fix, mitigation, or workaround guidance, as published by each source.
A vendor fix is available.
- FixedCisco Secure Endpointcisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (24)
Products and version ranges known to be affected.
advisories (1)
Vendor and ecosystem advisories describing this.
- cisco-sa-clamav-dos-vL9x58p4ClamAV Truncated File Denial of Service Vulnerability Affecting Cisco Products: May 20222022-05-04csaf · cisco_csafUS
On May 4, 2022, the following vulnerability in the ClamAV scanning library versions 0.103.5 and earlier and 0.104.2 and earlier was disclosed: A vulnerability in Clam AntiVirus (ClamAV) versions 0.103.4, 0.103.5, 0.104.1, and 0.104.2 could allow an authenticated, local attacker to cause a denial of service condition on an affected device. For a description of this vulnerability, see the ClamAV blog ["https://blog.clamav.net/2022/05/clamav-01050-01043-01036-released.html"].
also known as (4)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (29)
External citations — patches, advisories, analysis.
- http://blog.clamav.net/2022/05/clamav-01050-01043-01036-released.htmlPatchcnnvd
- https://cxsecurity.com/cveshow/CVE-2022-20796/cnnvd
- https://lists.debian.org/debian-lts-announce/2022/06/msg00004.htmlcnnvd
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/7RV6BLIATIJE74SQ6NG5ZC4JK5MMDQ2R/cnnvd
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BX5ZXNHP4NFYQ5BFSKY3WT7NTBZUYG7L/cnnvd
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/N4NNBIJVG6Z4PDIKUZXTYXICYUAYAZ56/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
Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.
Free scan