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Fencer Vulns
low 2.1

CVE-2004-2135 json

cryptoloop on Linux kernel 2.6.x, when used on certain file systems with a block size 1024 or greater, has certain "IV computation" weaknes…

published 2004-05-26 22 y ago modified 2026-06-16 4 mo ago also EUVD-2004-2127

cvss
2.1
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.2%
EPSS 1.2% chance of exploitation in 30 days, percentile 68%
public exploits
1
Exploit-DB

Summary

cryptoloop on Linux kernel 2.6.x, when used on certain file systems with a block size 1024 or greater, has certain "IV computation" weaknesses that allow watermarked files to be detected without decryption.

Timeline

  1. Published
  2. First public exploit (EDB-25707)

Exploit prediction

1.22% chance of exploitation in the next 30 days, higher than 68% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-25707 Linux Kernel 2.6.x - Cryptoloop Information Disclosure local, 2005-05-26
  • securityfocus.com http://www.securityfocus.com/bid/13775 referenced PoC, tagged "exploit" by a source, unverified
  • securiteam.com http://www.securiteam.com/exploits/5UP0P1PFPM.html referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 2.0 2.1 AV:L/AC:L/Au:N/C:P/I:N/A:N

Classification

Technology feeds

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.