CVEvulnerability

CVE-2026-25506

7.8 HIGH Published 2026-02-10 Modified 2026-07-15 Official page ↗
Status
Modified
Published
2026-02-10
Last modified
2026-07-15
Assigner
[email protected]
CVSS 3.1 ([email protected])
7.7 HIGH — CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:L
CVSS 3.1 ([email protected])
7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 3.1 (0b0ca135-0b70-47e7-9f44-1890c2a1c46c)
7.7 HIGH — CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:L
Weaknesses
CWE-120, CWE-787

Description

MUNGE is an authentication service for creating and validating user credentials. From 0.5 to 0.5.17, local attacker can exploit a buffer overflow vulnerability in munged (the MUNGE authentication daemon) to leak cryptographic key material from process memory. With the leaked key material, the attacker could forge arbitrary MUNGE credentials to impersonate any user (including root) to services that rely on MUNGE for authentication. The vulnerability allows a buffer overflow by sending a crafted message with an oversized address length field, corrupting munged's internal state and enabling extraction of the MAC subkey used for credential verification. This vulnerability is fixed in 0.5.18.

Affected configurations

• opensuse munge (>= 0.5 < 0.5.18) • debian debian linux 11.0

Related

Weakness · CWE (2)

  • CWE-120 Buffer Copy without Checking Size of Input weakness
  • CWE-787 Out-of-bounds Write weakness

References