CVE catalog

CVE-2026-109833

A flaw was found in gnome-remote-desktop as shipped in Red Hat Enterprise Linux. In the VNC TLS read path, partial consumption of the internal peek buffer incorrectly moves remaining peeked bytes into

[CVE catalog]

Severity
Medium · CVSS 5.9CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Published
Updated
Source
[NVD] · [CVE record]
EPSS
0.37% · Oct 25, 2026

A flaw was found in gnome-remote-desktop as shipped in Red Hat Enterprise Linux. In the VNC TLS read path, partial consumption of the internal peek buffer incorrectly moves remaining peeked bytes into the caller-supplied buffer instead of compacting the peek buffer. A remote attacker who can reach an enabled VNC TLS listener and trigger a peek/read size mismatch can cause an out-of-bounds write, leading to denial of service.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

DistributionPackageReleaseVersionStatus
Debiangnome-remote-desktopsid51.0-1not affected
Debiangnome-remote-desktopforky51.0-1not affected
Debiangnome-remote-desktoptrixie48.1-4not affected
Debiangnome-remote-desktopbookworm43.3-1not affected

Fixed-version evidence

DistributionPackageTypeReleaseFixed versionUrgencyOriginBugs
Debiangnome-remote-desktopsourcesidNot affectedunimportantNot reportedNot reported
Debiangnome-remote-desktopsourceforkyNot affectedunimportantNot reportedNot reported
Debiangnome-remote-desktopsourcetrixieNot affectedunimportantNot reportedNot reported
Debiangnome-remote-desktopsourcebookwormNot affectedunimportantNot reportedNot reported

OpenFactory catalog packages

[Debian 12 (Bookworm)]

  • [gnome-remote-desktop]Not affected
    Details (2)

    • 43.3-1 · amd64 · bookworm

      Not affected

      nvd · gnome-remote-desktop · debian · bookworm

    • 43.3-1 · arm64 · bookworm

      Not affected

      nvd · gnome-remote-desktop · debian · bookworm

Observed:

References

[Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [Red Hat security advisories and VEX]