What is CVE-2022-20796?

CVE-2022-20796 is a medium-severity vulnerability in Cisco Amp For Endpoints, classified under Untrusted Pointer Dereference. CVSS score: 6.5/10. Published 2022-05-04.

How severe is CVE-2022-20796?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Is CVE-2022-20796 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

NULL pointer dereference in Cisco Amp For Endpoints

CVE-2022-20796

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.

Published 2022-05-04 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.004 (31.5th percentile), scored 2026-10-21.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 31st percentile — 31.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: -0.000

Affected products

Cisco Amp For Endpoints
Cisco Secure Endpoint
Clamav — versions 0.103.4, 0.103.5, 0.104.1
Debian Linux — versions 9.0
Fedoraproject Fedora — versions 34, 35, 36

Weakness classification (CWE)

Public proof-of-concept exploits

fkie-cad/nvd-json-data-feeds

References

tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-clamav-d… (vendor-advisory, Third Party Advisory)
lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
lists.debian.org/debian-lts-announce/2022/06/msg00004.html (mailing-list, Mailing List, Third Party Advisory)
security.gentoo.org/glsa/202310-01 (vendor-advisory)

Frequently asked questions

What is CVE-2022-20796?: CVE-2022-20796 is a medium-severity vulnerability in Cisco Amp For Endpoints, classified under Untrusted Pointer Dereference. CVSS score: 6.5/10. Published 2022-05-04.
How severe is CVE-2022-20796?: Medium severity. CVSS v3 base score is 6.5 out of 10.
Is CVE-2022-20796 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.