CVE-2012-1458: clamav
Vulnerability summary
CVE-2012-1458 is a medium (CVSS 4.3) vulnerability in clamav. EPSS estimates a 73.67% chance of exploitation in the next 30 days, higher than 99.4% of scored vulnerabilities.
Not severe (CVSS 4.3, network access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 1 · Related 1Timeline
- 21-03-2012PublishedVulnerability first disclosed.
- 06-08-2024Last modifiedVulnerability information updated.
Description
The Microsoft CHM file parser in ClamAV 0.96.4 and Sophos Anti-Virus 4.61.0 allows remote attackers to bypass malware detection via a crafted reset interval in the LZXC header of a CHM file. NOTE: this may later be SPLIT into multiple CVEs if additional information is published showing that the error occurred independently in different CHM parser implementations.
CVSS metrics
1 score · 1 source · 1 versionEPSS trend
Probability
73.67%
Chance of exploitation in the next 30 days
Percentile
99%
Versus all other CVEs
30-day change
No change 0.00 pp
From 73.67% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, no authentication (CVSS vector). Other conditions: not stated in public data.
Clamav1 product
- clamav0.96.4
Debian1 product
- clamav< 0.97.5+dfsg-1
Sophos1 product
- sophos_anti-virus4.61.0
3 vendors · 3 products
References
9 links- www.ieee-security.org/TC/SP2012/program.htmlX Refsource MISC
