Description
rdesktop through 1.9.0 contains a heap out-of-bounds read vulnerability in process_plane() in bitmap.c that allows malicious RDP servers to crash clients by sending malformed 32 bpp compressed bitmaps. Attackers can declare a large bitmap geometry with a short compressed body in bitmap update PDUs or bitmap cache orders, causing unbounded reads past the receive buffer and denial of service.
Published: 2026-10-19
Score: 7.1 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

Sign in to view the affected projects.

Advisories

No advisories yet.

History

Tue, 20 Oct 2026 00:30:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

threat_severity

Moderate


Mon, 19 Oct 2026 21:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Mon, 19 Oct 2026 14:00:00 +0000

Type Values Removed Values Added
Description rdesktop through 1.9.0 contains a heap out-of-bounds read vulnerability in process_plane() in bitmap.c that allows malicious RDP servers to crash clients by sending malformed 32 bpp compressed bitmaps. Attackers can declare a large bitmap geometry with a short compressed body in bitmap update PDUs or bitmap cache orders, causing unbounded reads past the receive buffer and denial of service.
Title rdesktop through 1.9.0 Heap Out-of-Bounds Read via process_plane
First Time appeared Rdesktop
Rdesktop rdesktop
Weaknesses CWE-125
CPEs cpe:2.3:a:rdesktop:rdesktop:*:*:*:*:*:*:*:*
Vendors & Products Rdesktop
Rdesktop rdesktop
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H'}

cvssV4_0

{'score': 7.1, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N'}


Subscriptions

Rdesktop Rdesktop
cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-10-19T19:28:48.290Z

Reserved: 2026-10-19T13:25:29.594Z

Link: CVE-2026-112277

cve-icon Vulnrichment

Updated: 2026-10-19T19:28:09.427Z

cve-icon NVD

Status : Deferred

Published: 2026-10-19T14:17:05.663

Modified: 2026-10-19T21:14:14.150

Link: CVE-2026-112277

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-10-19T13:55:23Z

Links: CVE-2026-112277 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-10-20T01:45:07Z

Weaknesses