CVE catalog

CVE-2025-6020

PAM vulnerability

Severity: High · CVSS 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Published: Jun 17, 2025, 12:00:00 AM UTC
Source: [NVD] · [CVE record]
EPSS: 0.47% · Oct 25, 2026

A flaw was found in linux-pam. The module pam_namespace may use access user-controlled paths without proper protection, allowing local users to elevate their privileges to root via multiple symlink attacks and race conditions.

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	pam	sid	`1.7.0-8`	fixed
Debian	pam	forky	`1.7.0-8`	fixed
Debian	pam	trixie	`1.7.0-5`	fixed
Debian	pam	bookworm	`1.5.2-6+deb12u2`	fixed
Ubuntu	pam	noble	`1.5.2-6+deb12u2`	fixed
Ubuntu	pam	noble	`1.5.3-5ubuntu5.4`	fixed
Ubuntu	libpam-doc	noble	`1.5.3-5ubuntu5.4`	fixed
Ubuntu	libpam-modules	noble	`1.5.3-5ubuntu5.4`	fixed
Ubuntu	libpam-modules-bin	noble	`1.5.3-5ubuntu5.4`	fixed
Ubuntu	libpam-runtime	noble	`1.5.3-5ubuntu5.4`	fixed
Ubuntu	libpam0g	noble	`1.5.3-5ubuntu5.4`	fixed
Ubuntu	libpam0g-dev	noble	`1.5.3-5ubuntu5.4`	fixed
Ubuntu	pam	pro	`1.3.1-5ubuntu1`	vulnerable
Ubuntu	pam	pro	`1.3.1-5ubuntu3`	vulnerable
Ubuntu	pam	pro	`1.3.1-5ubuntu4`	vulnerable
Ubuntu	pam	pro	`1.3.1-5ubuntu4.1`	vulnerable
Ubuntu	pam	pro	`1.3.1-5ubuntu4.2`	vulnerable
Ubuntu	pam	pro	`1.3.1-5ubuntu4.3`	vulnerable
Ubuntu	pam	pro	`1.3.1-5ubuntu4.4`	vulnerable
Ubuntu	pam	pro	`1.3.1-5ubuntu4.6`	vulnerable
Ubuntu	pam	pro	`1.3.1-5ubuntu4.7`	vulnerable
Ubuntu	pam	pro	`1.3.1-5ubuntu4.7+esm1`	vulnerable
Ubuntu	pam	22.04	`1.3.1-5ubuntu11`	vulnerable
Ubuntu	pam	22.04	`1.4.0-10ubuntu1`	vulnerable
Ubuntu	pam	22.04	`1.4.0-10ubuntu2`	vulnerable
Ubuntu	pam	22.04	`1.4.0-11ubuntu1`	vulnerable
Ubuntu	pam	22.04	`1.4.0-11ubuntu2`	vulnerable
Ubuntu	pam	22.04	`1.4.0-11ubuntu2.1`	vulnerable
Ubuntu	pam	22.04	`1.4.0-11ubuntu2.3`	vulnerable
Ubuntu	pam	22.04	`1.4.0-11ubuntu2.4`	vulnerable
Ubuntu	pam	22.04	`1.4.0-11ubuntu2.5`	vulnerable
Ubuntu	pam	22.04	`1.4.0-11ubuntu2.6`	fixed
Ubuntu	pam	24.04	`1.5.2-6ubuntu1`	vulnerable
Ubuntu	pam	24.04	`1.5.2-9.1ubuntu1`	vulnerable
Ubuntu	pam	24.04	`1.5.2-9.1ubuntu2`	vulnerable
Ubuntu	pam	24.04	`1.5.2-9.1ubuntu3`	vulnerable
Ubuntu	pam	24.04	`1.5.3-5ubuntu3`	vulnerable
Ubuntu	pam	24.04	`1.5.3-5ubuntu4`	vulnerable
Ubuntu	pam	24.04	`1.5.3-5ubuntu5`	vulnerable
Ubuntu	pam	24.04	`1.5.3-5ubuntu5.1`	vulnerable
Ubuntu	pam	24.04	`1.5.3-5ubuntu5.4`	fixed
Ubuntu	pam	25.10	`1.5.3-7ubuntu4`	vulnerable
Ubuntu	pam	25.10	`1.5.3-7ubuntu5`	vulnerable
Ubuntu	pam	25.10	`1.5.3-7ubuntu6`	fixed
Ubuntu	pam	22.04	`1.3.1-5ubuntu11`	vulnerable
Ubuntu	pam	22.04	`1.4.0-10ubuntu1`	vulnerable
Ubuntu	pam	22.04	`1.4.0-10ubuntu2`	vulnerable
Ubuntu	pam	22.04	`1.4.0-11ubuntu1`	vulnerable
Ubuntu	pam	22.04	`1.4.0-11ubuntu2`	vulnerable
Ubuntu	pam	22.04	`1.4.0-11ubuntu2.1`	vulnerable
Ubuntu	pam	22.04	`1.4.0-11ubuntu2.3`	vulnerable
Ubuntu	pam	22.04	`1.4.0-11ubuntu2.4`	vulnerable
Ubuntu	pam	22.04	`1.4.0-11ubuntu2.5`	vulnerable
Ubuntu	pam	22.04	`1.4.0-11ubuntu2.6`	fixed
Ubuntu	pam	24.04	`1.5.2-6ubuntu1`	vulnerable
Ubuntu	pam	24.04	`1.5.2-9.1ubuntu1`	vulnerable
Ubuntu	pam	24.04	`1.5.2-9.1ubuntu2`	vulnerable
Ubuntu	pam	24.04	`1.5.2-9.1ubuntu3`	vulnerable
Ubuntu	pam	24.04	`1.5.3-5ubuntu3`	vulnerable
Ubuntu	pam	24.04	`1.5.3-5ubuntu4`	vulnerable
Ubuntu	pam	24.04	`1.5.3-5ubuntu5`	vulnerable
Ubuntu	pam	24.04	`1.5.3-5ubuntu5.1`	vulnerable
Ubuntu	pam	24.04	`1.5.3-5ubuntu5.4`	fixed
Opensuse	pam	tumbleweed	`1.7.1-1.1`	fixed
Suse	pam	linux micro 6.0	`1.6.0-5.1`	fixed
Suse	pam	linux micro 6.1	`1.6.1-slfo.1.1_3.1`	fixed

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	pam	source	sid	`1.7.0-5`	not yet assigned	Not reported	[1107919]
Debian	pam	source	forky	`1.7.0-5`	not yet assigned	Not reported	[1107919]
Debian	pam	source	trixie	`1.7.0-5`	not yet assigned	Not reported	[1107919]
Debian	pam	source	bookworm	`1.5.2-6+deb12u2`	not yet assigned	Not reported	[1107919]
Ubuntu	pam	deb	noble	`1.5.2-6+deb12u2`	Not reported	Not reported	Not reported
Ubuntu	pam	deb	noble	`1.5.3-5ubuntu5.4`	Not reported	Not reported	Not reported
Ubuntu	libpam-doc	deb	noble	`1.5.3-5ubuntu5.4`	Not reported	Not reported	Not reported
Ubuntu	libpam-modules	deb	noble	`1.5.3-5ubuntu5.4`	Not reported	Not reported	Not reported
Ubuntu	libpam-modules-bin	deb	noble	`1.5.3-5ubuntu5.4`	Not reported	Not reported	Not reported
Ubuntu	libpam-runtime	deb	noble	`1.5.3-5ubuntu5.4`	Not reported	Not reported	Not reported
Ubuntu	libpam0g	deb	noble	`1.5.3-5ubuntu5.4`	Not reported	Not reported	Not reported
Ubuntu	libpam0g-dev	deb	noble	`1.5.3-5ubuntu5.4`	Not reported	Not reported	Not reported
Ubuntu	pam	deb	22.04	`1.4.0-11ubuntu2.6`	Not reported	UBUNTU-CVE-2025-6020	Not reported
Ubuntu	pam	deb	24.04	`1.5.3-5ubuntu5.4`	Not reported	UBUNTU-CVE-2025-6020	Not reported
Ubuntu	pam	deb	25.10	`1.5.3-7ubuntu6`	Not reported	UBUNTU-CVE-2025-6020	Not reported
Ubuntu	pam	deb	22.04	`1.4.0-11ubuntu2.6`	Not reported	USN-7580-1	Not reported
Ubuntu	pam	deb	24.04	`1.5.3-5ubuntu5.4`	Not reported	USN-7580-1	Not reported
Opensuse	pam	rpm	tumbleweed	`1.7.1-1.1`	Not reported	OPENSUSE-SU-2025:15256-1	Not reported
Suse	pam	rpm	linux micro 6.0	`1.6.0-5.1`	Not reported	SUSE-SU-2025:20427-1	Not reported
Suse	pam	rpm	linux micro 6.1	`1.6.1-slfo.1.1_3.1`	Not reported	SUSE-SU-2025:20441-1	Not reported

[Debian bug #1107919]

OpenFactory catalog packages

[openSUSE Tumbleweed]

[pam-32bit]Unknown
Source package: [pam]
Details (1)
- 1.7.2+git48-1.1 · x86_64 · tumbleweed
  Unknown · Fixed: 1.7.1-1.1
  Version impact unknown
  usn · pam · opensuse · tumbleweed
[pam-devel]Unknown
Source package: [pam]
Details (1)
- 1.7.2+git48-1.1 · x86_64 · tumbleweed
  Unknown · Fixed: 1.7.1-1.1
  Version impact unknown
  usn · pam · opensuse · tumbleweed
[pam-devel-32bit]Unknown
Source package: [pam]
Details (1)
- 1.7.2+git48-1.1 · x86_64 · tumbleweed
  Unknown · Fixed: 1.7.1-1.1
  Version impact unknown
  usn · pam · opensuse · tumbleweed
[pam]Fixed
Source package: [pam]
Details (1)
- 1.7.2+git48-1.1 · x86_64 · tumbleweed
  Fixed · Fixed: 1.7.1-1.1
  usn · pam · opensuse · tumbleweed

[Debian 12 (Bookworm)]

[libpam0g]Fixed
Source package: [pam]
Details (2)
- 1.5.2-6+deb12u2 · amd64 · bookworm
  Fixed · Fixed: 1.5.2-6+deb12u2
  usn · pam · debian · bookworm; usn · pam · debian · 12
- 1.5.2-6+deb12u2 · arm64 · bookworm
  Fixed · Fixed: 1.5.2-6+deb12u2
  usn · pam · debian · bookworm; usn · pam · debian · 12
[libpam0g-dev]Fixed
Source package: [pam]
Details (2)
- 1.5.2-6+deb12u2 · amd64 · bookworm
  Fixed · Fixed: 1.5.2-6+deb12u2
  usn · pam · debian · bookworm; usn · pam · debian · 12
- 1.5.2-6+deb12u2 · arm64 · bookworm
  Fixed · Fixed: 1.5.2-6+deb12u2
  usn · pam · debian · bookworm; usn · pam · debian · 12
[libpam-doc]Fixed
Source package: [pam]
Details (2)
- 1.5.2-6+deb12u2 · all · bookworm
  Fixed · Fixed: 1.5.2-6+deb12u2
  usn · pam · debian · bookworm; usn · pam · debian · 12
- 1.5.2-6+deb12u2 · all · bookworm
  Fixed · Fixed: 1.5.2-6+deb12u2
  usn · pam · debian · bookworm; usn · pam · debian · 12
[libpam-modules]Fixed
Source package: [pam]
Details (2)
- 1.5.2-6+deb12u2 · amd64 · bookworm
  Fixed · Fixed: 1.5.2-6+deb12u2
  usn · pam · debian · bookworm; usn · pam · debian · 12
- 1.5.2-6+deb12u2 · arm64 · bookworm
  Fixed · Fixed: 1.5.2-6+deb12u2
  usn · pam · debian · bookworm; usn · pam · debian · 12
[libpam-modules-bin]Fixed
Source package: [pam]
Details (2)
- 1.5.2-6+deb12u2 · amd64 · bookworm
  Fixed · Fixed: 1.5.2-6+deb12u2
  usn · pam · debian · bookworm; usn · pam · debian · 12
- 1.5.2-6+deb12u2 · arm64 · bookworm
  Fixed · Fixed: 1.5.2-6+deb12u2
  usn · pam · debian · bookworm; usn · pam · debian · 12
[libpam-runtime]Fixed
Source package: [pam]
Details (2)
- 1.5.2-6+deb12u2 · all · bookworm
  Fixed · Fixed: 1.5.2-6+deb12u2
  usn · pam · debian · bookworm; usn · pam · debian · 12
- 1.5.2-6+deb12u2 · all · bookworm
  Fixed · Fixed: 1.5.2-6+deb12u2
  usn · pam · debian · bookworm; usn · pam · debian · 12

[Debian 13 (Trixie)]

[libpam0g]Fixed
Source package: [pam]
Details (2)
- 1.7.0-5 · amd64 · trixie
  Fixed · Fixed: 1.7.0-5
  usn · pam · debian · 13
- 1.7.0-5 · arm64 · trixie
  Fixed · Fixed: 1.7.0-5
  usn · pam · debian · 13
[libpam0g-dev]Fixed
Source package: [pam]
Details (2)
- 1.7.0-5 · amd64 · trixie
  Fixed · Fixed: 1.7.0-5
  usn · pam · debian · 13
- 1.7.0-5 · arm64 · trixie
  Fixed · Fixed: 1.7.0-5
  usn · pam · debian · 13
[libpam-doc]Fixed
Source package: [pam]
Details (2)
- 1.7.0-5 · all · trixie
  Fixed · Fixed: 1.7.0-5
  usn · pam · debian · 13
- 1.7.0-5 · all · trixie
  Fixed · Fixed: 1.7.0-5
  usn · pam · debian · 13
[libpam-modules]Fixed
Source package: [pam]
Details (2)
- 1.7.0-5 · amd64 · trixie
  Fixed · Fixed: 1.7.0-5
  usn · pam · debian · 13
- 1.7.0-5 · arm64 · trixie
  Fixed · Fixed: 1.7.0-5
  usn · pam · debian · 13
[libpam-modules-bin]Fixed
Source package: [pam]
Details (2)
- 1.7.0-5 · amd64 · trixie
  Fixed · Fixed: 1.7.0-5
  usn · pam · debian · 13
- 1.7.0-5 · arm64 · trixie
  Fixed · Fixed: 1.7.0-5
  usn · pam · debian · 13
[libpam-runtime]Fixed
Source package: [pam]
Details (2)
- 1.7.0-5 · all · trixie
  Fixed · Fixed: 1.7.0-5
  usn · pam · debian · 13
- 1.7.0-5 · all · trixie
  Fixed · Fixed: 1.7.0-5
  usn · pam · debian · 13

Observed: Oct 24, 2026, 9:52:40 PM UTC

References

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