Get a Demo

Let's Patch It!

Book a short call with one our specialists, we'll walk you through how Endor Patches work, and ask you a few questions about your environment (like your primary programming languages and repository management). We'll also send you an email right after you fill out the form, feel free to reply with any questions you have in advance!

CVE

CVE-2026-23530

freerdp: FreeRDP: Heap buffer overflow leading to denial of service and potential code execution from a malicious server. (important)
Back to all
CVE

CVE-2026-23530

freerdp: FreeRDP: Heap buffer overflow leading to denial of service and potential code execution from a malicious server. (important)

DOCUMENTATION: A flaw was found in FreeRDP, a free implementation of the Remote Desktop Protocol. This vulnerability occurs because the freerdpbitmapdecompress_planar function does not properly validate bitmap dimensions when decompressing planar bitmap data. A malicious server can exploit this by sending specially crafted bitmap data, leading to a client-side heap buffer overflow. This can cause a crash (Denial of Service) and potentially allow for arbitrary code execution on the client system. 

            STATEMENT: For this vulnerability to be exploited, a client must connect to a maliciously-configured server. Red Hat recommends that FreeRDP clients are only used to connect to trusted servers.

Package Versions Affected

Package Version
patch Availability
No items found.

Automatically patch vulnerabilities without upgrading

Fix Without Upgrading
Detect compatible fix
Apply safe remediation
Fix with a single pull request

CVSS Version

Severity
Base Score
CVSS Version
Score Vector
C
H
U
7.7
-
4.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
C
H
U
-
C
H
U
-

Related Resources

No items found.

References

https://access.redhat.com/security/cve/CVE-2026-23530

Severity

0

CVSS Score
0
10

Basic Information

Ecosystem
Base CVSS
0
EPSS Probability
0.00147%
EPSS Percentile
0.34978%
Introduced Version
0
Fix Available
0:2.11.5+dfsg1-1ubuntu0.1~esm3,0:2.2.0+dfsg1-0ubuntu0.18.04.4+esm3,0:2.6.1+dfsg1-0ubuntu0.20.04.2+esm1,0:2.6.1+dfsg1-3ubuntu2.8,3.22.0-r0,2:2.11.7-2.el8_10,2:2.11.7-1.el9_7.1,2:2.11.7-1.amzn2.0.3,2:3.6.3-1.amzn2023.0.2

Fix Critical Vulnerabilities Instantly

Secure your app without upgrading.
Fix Without Upgrading