CVE-2025-5689

HIGH EPSS 16.2%
Published Jun 16, 20251y ago · Modified Jun 17, 20262w ago
8.5 CVSS 3.1
High
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Published Jun 16, 2025 1y ago
Last Modified Jun 17, 2026 2w ago

Description

A flaw was found in the temporary user record that authd uses in the pre-auth NSS. As a result, a user login for the first time will be considered to be part of the root group in the context of that SSH session.

CVSS Details

Base Score
8.5
Exploitability
3.1
Impact
4.7
Vector string
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Changed
Confidentiality High
Integrity Low
Availability None

Threat Intelligence

EPSS Exploit Probability
16.2% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-269 Improper Privilege Management Authorization

Affected Products 1

VendorProductVersionRange
canonicalauthd* <0.5.4

References 1

  • github.com https://github.com/ubuntu/authd/security/advisories/GHSA-g8qw-mgjx-rwjr
    PatchVendor Advisory

Remediation

  • github.com https://github.com/ubuntu/authd/security/advisories/GHSA-g8qw-mgjx-rwjr
    PatchVendor Advisory