CVE-2026-80048

MEDIUM
MEDIUM Priority: 0.01 BB Relevance: 36/100
Published: 2026-10-07 Modified: 2026-11-06 First seen: 2026-11-06 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-kcm`. A local user or process able to connect to the `sssd-kcm` UNIX socket can exploit this vulnerability. By sending a large request length header and then stalling the connection, an attacker can cause the system to preallocate significant memory. This leads to memory exhaustion within the `sssd-kcm` responder, resulting in a Denial of Service (DoS) for affected deployments.

References & Advisories (2)

https://bugzilla.redhat.com/show_bug.cgi?id=2479377
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

0.18%
Raw Score 0.001800
Percentile 7.6%
Date 2026-11-13

EPSS Trend

2026-11-13
0.00180
2026-11-12
0.00180
2026-11-10
0.00180
2026-11-09
0.00180
2026-11-08
0.00180
2026-11-07
0.00180
2026-11-06
0.00180
2026-11-05
0.00180

Intelligence Sources

mitre ref →
nvd ref →