CVE-2020-37167

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

HIGH
8.4
CVSS Score
Published: February 12, 2026 at 10:48 PM UTC
Updated: September 30, 2026 at 06:17 PM UTC
1 product affected across 1 vendorClamAV

Using ClamBC by ClamAV?

Get instant alerts when new vulnerabilities affect ClamBC - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Severity
HIGH8.4
Exploit prediction
EPSS 0.2%
SSVC
PoC

Description

ClamAV ClamBC bytecode interpreter contains a vulnerability in function name processing 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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 0.103.0-rc0.103.0
Affected range stops below 0.103.0-rc, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCPoCAutomatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.4HIGHVulnCheck
Attack Vector
LOCAL
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-94

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Free plan, no card