CVE-2026-104042

MEDIUM
MEDIUM Priority: 0.01 BB Relevance: 36/100
Published: 2026-10-06 Modified: 2026-11-05 First seen: 2026-11-05 Status: active

Attack Surface

Low Complexity No Interaction

CVSS Vector Breakdown

AV: Local
AC: Low
PR: Low
UI: None
S: Unchanged
C: None
I: None
A: High

Description

A flaw was found in sssd. A local attacker can cause a Denial of Service (DoS) by sending a crafted Pluggable Authentication Module (PAM) request containing a zero-length authentication token to the responder socket. Due to missing input validation, the service attempts to read beyond buffer boundaries when processing the token, causing the PAM responder to crash.

Weakness Classification (1)

References & Advisories (2)

https://bugzilla.redhat.com/show_bug.cgi?id=2478862
issue-tracking x_refsource_REDHAT

Bug Bounty Relevance

36 / 100
✓ Low complexity
✓ No user interaction

CVSS Score

5.5 / 10.0 v3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS — Exploitation Probability

0.15%
Raw Score 0.001540
Percentile 4.6%
Date 2026-11-14

EPSS Trend

2026-11-14
0.00154
2026-11-13
0.00154
2026-11-12
0.00154
2026-11-10
0.00154
2026-11-09
0.00154
2026-11-08
0.00154
2026-11-07
0.00154
2026-11-06
0.00154
2026-11-05
0.00154

Intelligence Sources

mitre ref →
nvd ref →