Cloudanix VulnDB

CVE-2026-25506

High · 7.7

CVSS

7.7

EPSS

0.3%

Published

Feb 10, 2026

CISA due date

—

The record

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 packages

Ecosystem Package Introduced Fixed
SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS munge 0 0.5.15-150400.18.10.1
SUSE:Linux Enterprise High Performance Computing 15 SP4-LTSS munge 0 0.5.15-150400.18.10.1
SUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOS munge 0 0.5.15-150400.18.10.1
SUSE:Linux Enterprise High Performance Computing 15 SP5-LTSS munge 0 0.5.15-150400.18.10.1
SUSE:Linux Enterprise Module for HPC 12 munge 0 0.5.14-3.11.1
SUSE:Linux Enterprise Module for HPC 15 SP7 munge 0 0.5.16-150700.3.6.1
SUSE:Linux Enterprise Module for Package Hub 15 SP7 munge 0 0.5.16-150700.3.6.1
SUSE:Linux Enterprise Server 15 SP6-LTSS munge 0 0.5.15-150600.25.6.1
openSUSE:Leap 15.6 munge 0 0.5.15-150600.25.6.1
openSUSE:Tumbleweed munge 0 0.5.18-1.1

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