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CVE-2022-20785

29
FAUCET Score

CVE-2022-20785 is a denial-of-service vulnerability in the HTML file parser of ClamAV versions 0.104.0 through 0.104.2 and LTS version 0.103.5 and earlier, affecting products like Cisco, ClamAV, Debian, and Fedora. With a CVSS score of 7.5 (High), it allows an unauthenticated, remote attacker to cause a denial of service with low attack complexity. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
< 0.103.5CPE matchmatch criteria
cpe:2.3:a:clamav:clamav:*:*:*:*:*:*:*:*
<= 0.103.5CPE matchmatch criteria
cpe:2.3:a:clamav:clamav:*:*:*:*:lts:*:*:*
>= 0.104.0, < 0.104.2CPE matchmatch criteria
cpe:2.3:a:clamav:clamav:*:*:*:*:*:*:*:*
< 1.16.3CPE matchmatch criteria
cpe:2.3:a:cisco:secure_endpoint:*:*:*:*:*:macos:*:*
< 1.17.2CPE matchmatch criteria
cpe:2.3:a:cisco:secure_endpoint:*:*:*:*:*:linux:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
7.01%
Probability of exploitation in next 30 days
EPSS Percentile
93.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0701 is in the 89th percentile among its peer group of 51,506 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

microsoftpatch availablevia msrc
Product: 18715-16820Fixed in: 0.103.6-1
microsoftpatch availablevia msrc
Product: cm1 clamav 0.103.6-1 on CBL Mariner 1.0Fixed in: 0.103.6-1

Vendor Advisories (1)

microsoft2022-May/CVE-2022-20785Important

ClamAV HTML Scanning Memory Leak Vulnerability Affecting Cisco Products: April 2022

May 10, 2022

References

lists.debian.org / debian-lts-announce/2022/06/msg00004.html
Mailing ListThird Party Advisory
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/7RV6BLIATIJE74SQ6NG5ZC4JK5MMDQ2R
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/BX5ZXNHP4NFYQ5BFSKY3WT7NTBZUYG7L
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/N4NNBIJVG6Z4PDIKUZXTYXICYUAYAZ56
security.gentoo.org / glsa/202310-01
tools.cisco.com / security/center/content/CiscoSecurityAdvisory/cisco-sa-clamav-html-XAuOK8mR
Third Party Advisory