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Fencer Vulns
medium 5.1

CVE-2005-3211 json

Multiple interpretation error in unspecified versions of BitDefender Antivirus allows remote attackers to bypass virus detection via a mali…

published 2005-10-14 21 y ago modified 2026-06-16 4 mo ago also EUVD-2005-3210

cvss
5.1
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.9%
EPSS 1.9% chance of exploitation in 30 days, percentile 79%
public exploits
0
none known

Summary

Multiple interpretation error in unspecified versions of BitDefender Antivirus allows remote attackers to bypass virus detection via a malicious executable in a specially crafted RAR file with malformed central and local headers, which can still be opened by products such as Winrar and PowerZip, even though they are rejected as corrupted by Winzip and BitZipper.

Exploit prediction

1.88% chance of exploitation in the next 30 days, higher than 79% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • shadock.net http://shadock.net/secubox/AVCraftedArchive.html referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 2.0 5.1 AV:N/AC:H/Au:N/C:P/I:P/A:P

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.