CVE catalog

CVE-2025-30258

GnuPG vulnerability

Severity: Low · CVSS 2.7CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:C/C:N/I:N/A:L
Published: Mar 19, 2025, 12:00:00 AM UTC
Source: [NVD] · [CVE record]
EPSS: 0.19% · Oct 25, 2026

In GnuPG before 2.5.5, if a user chooses to import a certificate with certain crafted subkey data that lacks a valid backsig or that has incorrect usage flags, the user loses the ability to verify signatures made from certain other signing keys, aka a "verification DoS."

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	gnupg2	sid	`2.4.9-8`	fixed
Debian	gnupg2	forky	`2.4.9-8`	fixed
Debian	gnupg2	trixie	`2.4.7-21+deb13u1`	fixed
Debian	gnupg2	bookworm	`2.2.40-1.1+deb12u2`	vulnerable
Ubuntu	gnupg2	noble	Not reported	vulnerable
Ubuntu	gnupg2	noble	`2.4.4-2ubuntu17.2`	fixed
Ubuntu	dirmngr	noble	`2.4.4-2ubuntu17.2`	fixed
Ubuntu	gnupg	noble	`2.4.4-2ubuntu17.2`	fixed
Ubuntu	gnupg-agent	noble	`2.4.4-2ubuntu17.2`	fixed
Ubuntu	gnupg-l10n	noble	`2.4.4-2ubuntu17.2`	fixed
Ubuntu	gnupg-utils	noble	`2.4.4-2ubuntu17.2`	fixed
Ubuntu	gpg	noble	`2.4.4-2ubuntu17.2`	fixed
Ubuntu	gpg-agent	noble	`2.4.4-2ubuntu17.2`	fixed
Ubuntu	gpg-wks-client	noble	`2.4.4-2ubuntu17.2`	fixed
Ubuntu	gpg-wks-server	noble	`2.4.4-2ubuntu17.2`	fixed
Ubuntu	gpgconf	noble	`2.4.4-2ubuntu17.2`	fixed
Ubuntu	gpgsm	noble	`2.4.4-2ubuntu17.2`	fixed
Ubuntu	gpgv	noble	`2.4.4-2ubuntu17.2`	fixed
Ubuntu	gpgv-static	noble	`2.4.4-2ubuntu17.2`	fixed
Ubuntu	gpgv-win32	noble	`2.4.4-2ubuntu17.2`	fixed
Ubuntu	keyboxd	noble	`2.4.4-2ubuntu17.2`	fixed
Ubuntu	scdaemon	noble	`2.4.4-2ubuntu17.2`	fixed
Opensuse	gpg2	tumbleweed	`2.5.6-1.1`	fixed
Suse	gpg2	linux enterprise micro 5.3	`2.2.27-150300.3.13.1`	fixed
Suse	gpg2	linux enterprise micro 5.4	`2.2.27-150300.3.13.1`	fixed
Suse	gpg2	linux enterprise micro 5.5	`2.2.27-150300.3.13.1`	fixed
Suse	gpg2	linux enterprise micro 5.2	`2.2.27-150300.3.13.1`	fixed
Suse	gpg2	linux micro 6.1	`2.4.4-slfo.1.1_3.1`	fixed
Suse	gpg2	linux micro 6.0	`2.4.4-5.1`	fixed
Suse	gpg2	linux micro 6.1	`2.4.4-slfo.1.1_2.1`	fixed
Suse	gpg2	linux micro 6.0	`2.4.4-2.1`	fixed
Suse	gpg2	linux micro 6.1	`2.4.4-slfo.1.1_4.1`	fixed
Suse	gpg2	linux micro 6.1	`2.4.4-slfo.1.1_5.1`	fixed
Suse	gpg2	linux micro 6.0	`2.4.4-4.1`	fixed
Suse	gpg2	linux enterprise module for basesystem 15 sp6	`2.4.4-150600.3.9.1`	fixed
Suse	gpg2	linux enterprise module for basesystem 15 sp7	`2.4.4-150600.3.9.1`	fixed
Opensuse	gpg2	leap 15.6	`2.4.4-150600.3.9.1`	fixed
Ubuntu	gnupg2	20.04	`2.2.12-1ubuntu3`	vulnerable
Ubuntu	gnupg2	20.04	`2.2.17-3ubuntu1`	vulnerable
Ubuntu	gnupg2	20.04	`2.2.19-3ubuntu2`	vulnerable
Ubuntu	gnupg2	20.04	`2.2.19-3ubuntu2.1`	vulnerable
Ubuntu	gnupg2	20.04	`2.2.19-3ubuntu2.2`	vulnerable
Ubuntu	gnupg2	20.04	`2.2.19-3ubuntu2.4`	fixed
Ubuntu	gnupg2	22.04	`2.2.20-1ubuntu4`	vulnerable
Ubuntu	gnupg2	22.04	`2.2.27-2ubuntu1`	vulnerable
Ubuntu	gnupg2	22.04	`2.2.27-3ubuntu1`	vulnerable
Ubuntu	gnupg2	22.04	`2.2.27-3ubuntu2`	vulnerable
Ubuntu	gnupg2	22.04	`2.2.27-3ubuntu2.1`	vulnerable
Ubuntu	gnupg2	22.04	`2.2.27-3ubuntu2.3`	fixed
Ubuntu	gnupg2	24.04	`2.2.40-1.1ubuntu1`	vulnerable
Ubuntu	gnupg2	24.04	`2.4.4-2ubuntu7`	vulnerable
Ubuntu	gnupg2	24.04	`2.4.4-2ubuntu15`	vulnerable
Ubuntu	gnupg2	24.04	`2.4.4-2ubuntu16`	vulnerable
Ubuntu	gnupg2	24.04	`2.4.4-2ubuntu17`	vulnerable
Ubuntu	gnupg2	24.04	`2.4.4-2ubuntu17.2`	fixed
Ubuntu	gnupg2	pro	`2.1.15-1ubuntu8`	vulnerable
Ubuntu	gnupg2	pro	`2.2.4-1ubuntu1`	vulnerable
Ubuntu	gnupg2	pro	`2.2.4-1ubuntu1.1`	vulnerable
Ubuntu	gnupg2	pro	`2.2.4-1ubuntu1.2`	vulnerable
Ubuntu	gnupg2	pro	`2.2.4-1ubuntu1.3`	vulnerable
Ubuntu	gnupg2	pro	`2.2.4-1ubuntu1.4`	vulnerable
Ubuntu	gnupg2	pro	`2.2.4-1ubuntu1.5`	vulnerable
Ubuntu	gnupg2	pro	`2.2.4-1ubuntu1.6`	vulnerable
Ubuntu	gnupg2	pro	`2.2.4-1ubuntu1.6+esm1`	fixed
Ubuntu	gnupg2	20.04	`2.2.12-1ubuntu3`	vulnerable
Ubuntu	gnupg2	20.04	`2.2.17-3ubuntu1`	vulnerable
Ubuntu	gnupg2	20.04	`2.2.19-3ubuntu2`	vulnerable
Ubuntu	gnupg2	20.04	`2.2.19-3ubuntu2.1`	vulnerable
Ubuntu	gnupg2	20.04	`2.2.19-3ubuntu2.2`	vulnerable
Ubuntu	gnupg2	20.04	`2.2.19-3ubuntu2.4`	fixed
Ubuntu	gnupg2	22.04	`2.2.20-1ubuntu4`	vulnerable
Ubuntu	gnupg2	22.04	`2.2.27-2ubuntu1`	vulnerable
Ubuntu	gnupg2	22.04	`2.2.27-3ubuntu1`	vulnerable
Ubuntu	gnupg2	22.04	`2.2.27-3ubuntu2`	vulnerable
Ubuntu	gnupg2	22.04	`2.2.27-3ubuntu2.1`	vulnerable
Ubuntu	gnupg2	22.04	`2.2.27-3ubuntu2.3`	fixed
Ubuntu	gnupg2	24.04	`2.2.40-1.1ubuntu1`	vulnerable
Ubuntu	gnupg2	24.04	`2.4.4-2ubuntu7`	vulnerable
Ubuntu	gnupg2	24.04	`2.4.4-2ubuntu15`	vulnerable
Ubuntu	gnupg2	24.04	`2.4.4-2ubuntu16`	vulnerable
Ubuntu	gnupg2	24.04	`2.4.4-2ubuntu17`	vulnerable
Ubuntu	gnupg2	24.04	`2.4.4-2ubuntu17.2`	fixed
Ubuntu	gnupg2	25.10	`2.4.4-2ubuntu23`	fixed

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	gnupg2	source	sid	`2.2.46-5`	not yet assigned	Not reported	[1100990]
Debian	gnupg2	source	forky	`2.2.46-5`	not yet assigned	Not reported	[1100990]
Debian	gnupg2	source	trixie	`2.2.46-5`	not yet assigned	Not reported	[1100990]
Debian	gnupg2	source	bookworm	`(unfixed)`	not yet assigned	Not reported	[1100990]
Ubuntu	gnupg2	deb	noble	`2.4.4-2ubuntu17.2`	Not reported	Not reported	Not reported
Ubuntu	dirmngr	deb	noble	`2.4.4-2ubuntu17.2`	Not reported	Not reported	Not reported
Ubuntu	gnupg	deb	noble	`2.4.4-2ubuntu17.2`	Not reported	Not reported	Not reported
Ubuntu	gnupg-agent	deb	noble	`2.4.4-2ubuntu17.2`	Not reported	Not reported	Not reported
Ubuntu	gnupg-l10n	deb	noble	`2.4.4-2ubuntu17.2`	Not reported	Not reported	Not reported
Ubuntu	gnupg-utils	deb	noble	`2.4.4-2ubuntu17.2`	Not reported	Not reported	Not reported
Ubuntu	gpg	deb	noble	`2.4.4-2ubuntu17.2`	Not reported	Not reported	Not reported
Ubuntu	gpg-agent	deb	noble	`2.4.4-2ubuntu17.2`	Not reported	Not reported	Not reported
Ubuntu	gpg-wks-client	deb	noble	`2.4.4-2ubuntu17.2`	Not reported	Not reported	Not reported
Ubuntu	gpg-wks-server	deb	noble	`2.4.4-2ubuntu17.2`	Not reported	Not reported	Not reported
Ubuntu	gpgconf	deb	noble	`2.4.4-2ubuntu17.2`	Not reported	Not reported	Not reported
Ubuntu	gpgsm	deb	noble	`2.4.4-2ubuntu17.2`	Not reported	Not reported	Not reported
Ubuntu	gpgv	deb	noble	`2.4.4-2ubuntu17.2`	Not reported	Not reported	Not reported
Ubuntu	gpgv-static	deb	noble	`2.4.4-2ubuntu17.2`	Not reported	Not reported	Not reported
Ubuntu	gpgv-win32	deb	noble	`2.4.4-2ubuntu17.2`	Not reported	Not reported	Not reported
Ubuntu	keyboxd	deb	noble	`2.4.4-2ubuntu17.2`	Not reported	Not reported	Not reported
Ubuntu	scdaemon	deb	noble	`2.4.4-2ubuntu17.2`	Not reported	Not reported	Not reported
Opensuse	gpg2	rpm	tumbleweed	`2.5.6-1.1`	Not reported	OPENSUSE-SU-2025:15076-1	Not reported
Suse	gpg2	rpm	linux enterprise micro 5.3	`2.2.27-150300.3.13.1`	Not reported	SUSE-SU-2025:3986-1	Not reported
Suse	gpg2	rpm	linux enterprise micro 5.4	`2.2.27-150300.3.13.1`	Not reported	SUSE-SU-2025:3986-1	Not reported
Suse	gpg2	rpm	linux enterprise micro 5.5	`2.2.27-150300.3.13.1`	Not reported	SUSE-SU-2025:3986-1	Not reported
Suse	gpg2	rpm	linux enterprise micro 5.2	`2.2.27-150300.3.13.1`	Not reported	SUSE-SU-2025:3986-1	Not reported
Suse	gpg2	rpm	linux micro 6.1	`2.4.4-slfo.1.1_3.1`	Not reported	SUSE-SU-2025:20458-1	Not reported
Suse	gpg2	rpm	linux micro 6.0	`2.4.4-5.1`	Not reported	SUSE-SU-2025:20465-1	Not reported
Suse	gpg2	rpm	linux micro 6.1	`2.4.4-slfo.1.1_2.1`	Not reported	SUSE-SU-2025:20444-1	Not reported
Suse	gpg2	rpm	linux micro 6.0	`2.4.4-2.1`	Not reported	SUSE-SU-2025:20209-1	Not reported
Suse	gpg2	rpm	linux micro 6.1	`2.4.4-slfo.1.1_4.1`	Not reported	SUSE-RU-2025:20460-1	Not reported
Suse	gpg2	rpm	linux micro 6.1	`2.4.4-slfo.1.1_5.1`	Not reported	SUSE-SU-2025:20472-1	Not reported
Suse	gpg2	rpm	linux micro 6.0	`2.4.4-4.1`	Not reported	SUSE-SU-2025:20454-1	Not reported
Suse	gpg2	rpm	linux enterprise module for basesystem 15 sp6	`2.4.4-150600.3.9.1`	Not reported	SUSE-SU-2025:02259-1	Not reported
Suse	gpg2	rpm	linux enterprise module for basesystem 15 sp7	`2.4.4-150600.3.9.1`	Not reported	SUSE-SU-2025:02259-1	Not reported
Opensuse	gpg2	rpm	leap 15.6	`2.4.4-150600.3.9.1`	Not reported	SUSE-SU-2025:02259-1	Not reported
Ubuntu	gnupg2	deb	20.04	`2.2.19-3ubuntu2.4`	Not reported	USN-7412-1	Not reported
Ubuntu	gnupg2	deb	22.04	`2.2.27-3ubuntu2.3`	Not reported	USN-7412-1	Not reported
Ubuntu	gnupg2	deb	24.04	`2.4.4-2ubuntu17.2`	Not reported	USN-7412-1	Not reported
Ubuntu	gnupg2	deb	pro	`2.2.4-1ubuntu1.6+esm1`	Not reported	UBUNTU-CVE-2025-30258	Not reported
Ubuntu	gnupg2	deb	20.04	`2.2.19-3ubuntu2.4`	Not reported	UBUNTU-CVE-2025-30258	Not reported
Ubuntu	gnupg2	deb	22.04	`2.2.27-3ubuntu2.3`	Not reported	UBUNTU-CVE-2025-30258	Not reported
Ubuntu	gnupg2	deb	24.04	`2.4.4-2ubuntu17.2`	Not reported	UBUNTU-CVE-2025-30258	Not reported
Ubuntu	gnupg2	deb	25.10	`2.4.4-2ubuntu23`	Not reported	UBUNTU-CVE-2025-30258	Not reported

[Debian bug #1100990]

Notes

[bookworm] gnupg2: Minor issue

OpenFactory catalog packages

[Debian 12 (Bookworm)]

[dirmngr]Affected
Source package: [gnupg2]
Details (2)
- 2.2.40-1.1+deb12u2 · amd64 · bookworm
  Affected
  usn · gnupg2 · debian · bookworm; usn · gnupg2 · debian · 12
- 2.2.40-1.1+deb12u2 · arm64 · bookworm
  Affected
  usn · gnupg2 · debian · bookworm; usn · gnupg2 · debian · 12
[gnupg]Affected
Source package: [gnupg2]
Details (2)
- 2.2.40-1.1+deb12u2 · all · bookworm
  Affected
  usn · gnupg2 · debian · bookworm; usn · gnupg2 · debian · 12
- 2.2.40-1.1+deb12u2 · all · bookworm
  Affected
  usn · gnupg2 · debian · bookworm; usn · gnupg2 · debian · 12
[gnupg2]Affected
Details (2)
- 2.2.40-1.1+deb12u2 · all · bookworm
  Affected
  usn · gnupg2 · debian · bookworm; usn · gnupg2 · debian · 12
- 2.2.40-1.1+deb12u2 · all · bookworm
  Affected
  usn · gnupg2 · debian · bookworm; usn · gnupg2 · debian · 12
[gnupg-agent]Affected
Source package: [gnupg2]
Details (2)
- 2.2.40-1.1+deb12u2 · all · bookworm
  Affected
  usn · gnupg2 · debian · bookworm; usn · gnupg2 · debian · 12
- 2.2.40-1.1+deb12u2 · all · bookworm
  Affected
  usn · gnupg2 · debian · bookworm; usn · gnupg2 · debian · 12
[gnupg-l10n]Affected
Source package: [gnupg2]
Details (2)
- 2.2.40-1.1+deb12u2 · all · bookworm
  Affected
  usn · gnupg2 · debian · bookworm; usn · gnupg2 · debian · 12
- 2.2.40-1.1+deb12u2 · all · bookworm
  Affected
  usn · gnupg2 · debian · bookworm; usn · gnupg2 · debian · 12
[gnupg-utils]Affected
Source package: [gnupg2]
Details (2)
- 2.2.40-1.1+deb12u2 · amd64 · bookworm
  Affected
  usn · gnupg2 · debian · bookworm; usn · gnupg2 · debian · 12
- 2.2.40-1.1+deb12u2 · arm64 · bookworm
  Affected
  usn · gnupg2 · debian · bookworm; usn · gnupg2 · debian · 12
[gpg]Affected
Source package: [gnupg2]
Details (2)
- 2.2.40-1.1+deb12u2 · amd64 · bookworm
  Affected
  usn · gnupg2 · debian · bookworm; usn · gnupg2 · debian · 12
- 2.2.40-1.1+deb12u2 · arm64 · bookworm
  Affected
  usn · gnupg2 · debian · bookworm; usn · gnupg2 · debian · 12
[gpg-agent]Affected
Source package: [gnupg2]
Details (2)
- 2.2.40-1.1+deb12u2 · amd64 · bookworm
  Affected
  usn · gnupg2 · debian · bookworm; usn · gnupg2 · debian · 12
- 2.2.40-1.1+deb12u2 · arm64 · bookworm
  Affected
  usn · gnupg2 · debian · bookworm; usn · gnupg2 · debian · 12
[gpgconf]Affected
Source package: [gnupg2]
Details (2)
- 2.2.40-1.1+deb12u2 · amd64 · bookworm
  Affected
  usn · gnupg2 · debian · bookworm; usn · gnupg2 · debian · 12
- 2.2.40-1.1+deb12u2 · arm64 · bookworm
  Affected
  usn · gnupg2 · debian · bookworm; usn · gnupg2 · debian · 12
[gpgsm]Affected
Source package: [gnupg2]
Details (2)
- 2.2.40-1.1+deb12u2 · amd64 · bookworm
  Affected
  usn · gnupg2 · debian · bookworm; usn · gnupg2 · debian · 12
- 2.2.40-1.1+deb12u2 · arm64 · bookworm
  Affected
  usn · gnupg2 · debian · bookworm; usn · gnupg2 · debian · 12
[gpgv]Affected
Source package: [gnupg2]
Details (2)
- 2.2.40-1.1+deb12u2 · amd64 · bookworm
  Affected
  usn · gnupg2 · debian · bookworm; usn · gnupg2 · debian · 12
- 2.2.40-1.1+deb12u2 · arm64 · bookworm
  Affected
  usn · gnupg2 · debian · bookworm; usn · gnupg2 · debian · 12
[gpgv2]Affected
Source package: [gnupg2]
Details (2)
- 2.2.40-1.1+deb12u2 · all · bookworm
  Affected
  usn · gnupg2 · debian · bookworm; usn · gnupg2 · debian · 12
- 2.2.40-1.1+deb12u2 · all · bookworm
  Affected
  usn · gnupg2 · debian · bookworm; usn · gnupg2 · debian · 12
[gpgv-static]Affected
Source package: [gnupg2]
Details (2)
- 2.2.40-1.1+deb12u2 · amd64 · bookworm
  Affected
  usn · gnupg2 · debian · bookworm; usn · gnupg2 · debian · 12
- 2.2.40-1.1+deb12u2 · arm64 · bookworm
  Affected
  usn · gnupg2 · debian · bookworm; usn · gnupg2 · debian · 12
[gpgv-win32]Affected
Source package: [gnupg2]
Details (2)
- 2.2.40-1.1+deb12u2 · all · bookworm
  Affected
  usn · gnupg2 · debian · bookworm; usn · gnupg2 · debian · 12
- 2.2.40-1.1+deb12u2 · all · bookworm
  Affected
  usn · gnupg2 · debian · bookworm; usn · gnupg2 · debian · 12
[gpg-wks-client]Affected
Source package: [gnupg2]
Details (2)
- 2.2.40-1.1+deb12u2 · amd64 · bookworm
  Affected
  usn · gnupg2 · debian · bookworm; usn · gnupg2 · debian · 12
- 2.2.40-1.1+deb12u2 · arm64 · bookworm
  Affected
  usn · gnupg2 · debian · bookworm; usn · gnupg2 · debian · 12
[gpg-wks-server]Affected
Source package: [gnupg2]
Details (2)
- 2.2.40-1.1+deb12u2 · amd64 · bookworm
  Affected
  usn · gnupg2 · debian · bookworm; usn · gnupg2 · debian · 12
- 2.2.40-1.1+deb12u2 · arm64 · bookworm
  Affected
  usn · gnupg2 · debian · bookworm; usn · gnupg2 · debian · 12
[scdaemon]Affected
Source package: [gnupg2]
Details (2)
- 2.2.40-1.1+deb12u2 · amd64 · bookworm
  Affected
  usn · gnupg2 · debian · bookworm; usn · gnupg2 · debian · 12
- 2.2.40-1.1+deb12u2 · arm64 · bookworm
  Affected
  usn · gnupg2 · debian · bookworm; usn · gnupg2 · debian · 12

[openSUSE Tumbleweed]

[dirmngr]Unknown
Source package: [gpg2]
Details (1)
- 2.5.21-1.2 · x86_64 · tumbleweed
  Unknown · Fixed: 2.5.6-1.1
  Version impact unknown
  usn · gpg2 · opensuse · tumbleweed
[gpg2-lang]Unknown
Source package: [gpg2]
Details (1)
- 2.5.21-1.2 · noarch · tumbleweed
  Unknown · Fixed: 2.5.6-1.1
  Version impact unknown
  usn · gpg2 · opensuse · tumbleweed
[gpg2-tpm]Unknown
Source package: [gpg2]
Details (1)
- 2.5.21-1.2 · x86_64 · tumbleweed
  Unknown · Fixed: 2.5.6-1.1
  Version impact unknown
  usn · gpg2 · opensuse · tumbleweed

Next results

Observed: Oct 24, 2026, 11:27:14 PM UTC

References

[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX] · [Ubuntu Security Notices (USN)]