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CVE-2020-37167

ClamAV ClamBC < 0.103.0-rc - 'ClamBC' Executable Regular Expression Error

Published: Feb 12, 2026Updated: Feb 27, 2026 Sources: CVE List NVD BDU
8.4HIGH
NVD MITRE
EPSS Score
0.2%
Top 93.3%
CISA KEV
Not in KEV
Exploits
1 Known
Remediation
Patch Available

Description

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:LAC:LPR:NUI:NS:UC:HI:HA:H
Exploitability
AV:LAttack Vector
Local
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
Open in CVSS calculator →

Affected Products

ClamBCClamAV
On-prem
Security Products / endpoint-av-edr
Debian GNU/LinuxСообщество свободного программного обеспечения
On-premOS
Operating Systems / linux-distro
Clam AntivirusCisco Systems Inc.Networking Infrastructure
clamavoss-projectSecurity Productsaka clambc, clamav
сообщество свободного программного обеспеченияoss-projectOperating Systemsaka сообщество свободного программного обеспечения, fsf
cisco systems inc.commercialUSNetworking Infrastructureaka cisco systems, cisco

Exploitability

1 exploit source identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details
Official Patch Available
No detection template yetWe can run the check for you — a free external exposure review, no install. Check my exposure

References

https://www.exploit-db.com/exploits/47687
exploit-db.com
https://github.com/Cisco-Talos/clamav/commit/cd2f2975b93277de7f74464d48adb378375a305f
github.com
https://www.clamav.net/
clamav.net
and 3 more references View all →

Timeline

Published
Feb 12, 2026
Last Updated
Feb 27, 2026

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