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Fencer Vulns
critical 9.8

CVE-2001-0609 in the critical feed json

Format string vulnerability in Infodrom cfingerd 1.4.3 and earlier allows a remote attacker to gain additional privileges via a malformed i…

published 2001-07-27 25 y ago modified 2026-06-16 4 mo ago also EUVD-2001-0600

cvss
9.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
18.2%
EPSS 18.2% chance of exploitation in 30 days, percentile 97%
public exploits
2
Exploit-DB

Summary

Format string vulnerability in Infodrom cfingerd 1.4.3 and earlier allows a remote attacker to gain additional privileges via a malformed ident reply that is passed to the syslog function.

Patch / fix

Timeline

  1. First public exploit (EDB-20748)
  2. Published

Exploit prediction

18.23% chance of exploitation in the next 30 days, higher than 97% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-20749 cfingerd 1.4 - Format String (2) remote, 2001-04-16
  • EDB-20748 cfingerd 1.4 - Format String (1) remote, 2001-04-11
  • securityfocus.com http://www.securityfocus.com/bid/2576 referenced PoC, tagged "exploit" by a source, unverified
  • archives.neohapsis.com http://archives.neohapsis.com/archives/bugtraq/2001-04/0202.html referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 10.0 AV:N/AC:L/Au:N/C:C/I:C/A:C

Classification

Weakness

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.