CVE-2026-109832

HIGH
MEDIUM Priority: 0.03 BB Relevance: 75/100
Published: 2026-10-13 Modified: 2026-11-04 First seen: 2026-11-03 Status: active

Attack Surface

Network Low Complexity No Auth No Interaction

CVSS Vector Breakdown

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

Description

A flaw was found in gnome-remote-desktop as shipped in Red Hat Enterprise Linux. In the VNC TLS I/O handlers, retryable GnuTLS results (GNUTLS_E_AGAIN and GNUTLS_E_INTERRUPTED) are handled with an unbounded busy loop instead of yielding to the event loop. A remote attacker who can reach an enabled VNC TLS listener can cause the event-loop thread to spin at high CPU with no forward progress, resulting in denial of service.

References & Advisories (2)

https://bugzilla.redhat.com/show_bug.cgi?id=2550352
issue-tracking x_refsource_REDHAT

Bug Bounty Relevance

75 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

7.5 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS — Exploitation Probability

0.41%
Raw Score 0.004100
Percentile 35.4%
Date 2026-11-05

EPSS Trend

2026-11-05
0.00410
2026-11-04
0.00410
2026-11-03
0.00410
2026-11-02
0.00410

Intelligence Sources

mitre ref →
nvd ref →