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Fencer Vulns
medium 4.6

CVE-2006-0455 json

gpgv in GnuPG before 1.4.2.1, when using unattended signature verification, returns a 0 exit code in certain cases even when the detached s…

published 2006-02-15 20 y ago modified 2026-06-16 4 mo ago also EUVD-2006-0462

cvss
4.6
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.4%
EPSS 1.4% chance of exploitation in 30 days, percentile 71%
public exploits
1
Exploit-DB

Summary

gpgv in GnuPG before 1.4.2.1, when using unattended signature verification, returns a 0 exit code in certain cases even when the detached signature file does not carry a signature, which could cause programs that use gpgv to assume that the signature verification has succeeded. Note: this also occurs when running the equivalent command "gpg --verify".

Patch / fix

  • gnupg RHEL 3 1.2.1-15
  • gnupg RHEL 4 1.2.6-3

red hat advisories RHSA-2006:0266

  • gpg2 openSUSE Tumbleweed 2.2.27-2.4

opensuse advisories openSUSE-SU-2024:10815-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2006-0455 updated

security flaw

  • Red Hat Desktop version 3 gnupg 1.2.1-15 Red Hat Enterprise Linux AS version 3 gnupg 1.2.1-15 Red Hat Enterprise Linux AS version 4 gnupg 1.2.6-3 Red Hat Enterprise Linux Desktop version 4 gnupg 1.2.6-3 Red Hat Enterprise Linux ES version 3 gnupg 1.2.1-15 Red Hat Enterprise Linux ES version 4 gnupg 1.2.6-3
    +2 more products
    Red Hat Enterprise Linux WS version 3 gnupg 1.2.1-15 Red Hat Enterprise Linux WS version 4 gnupg 1.2.6-3
    fixed: vendor fix RHSA-2006:0266

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Timeline

  1. First public exploit (EDB-27231)
  2. Published

Exploit prediction

1.36% chance of exploitation in the next 30 days, higher than 71% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-27231 GnuPG 1.x - Detached Signature Verification Bypass local, 2006-02-15
  • securityfocus.com http://www.securityfocus.com/bid/16663 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 2.0 4.6 AV:L/AC:L/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.