Buffer Overflow Affecting freerdp-devel package, versions <2:2.11.7-7.el9_8.8


Severity

Recommended
high

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.46% (38th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-ORACLE9-FREERDPDEVEL-20649928
  • published8 Oct 2026
  • disclosed15 Sept 2026

Introduced: 15 Sep 2026

CVE-2026-91953  (opens in a new tab)
CWE-120  (opens in a new tab)

How to fix?

Upgrade Oracle:9 freerdp-devel to version 2:2.11.7-7.el9_8.8 or higher.
This issue was patched in ELSA-2026-76755.

NVD Description

Note: Versions mentioned in the description apply only to the upstream freerdp-devel package and not the freerdp-devel package as distributed by Oracle. See How to fix? for Oracle:9 relevant fixed versions and status.

FreeRDP versions before 3.31.0 contain a heap buffer overflow vulnerability in nego_send_negotiation_request() that fails to validate the LB_LOAD_BALANCE_INFO field length before writing to a fixed 512-byte buffer. A malicious RDP server or man-in-the-middle can send a Server Redirection PDU with an oversized LB_LOAD_BALANCE_INFO value to overflow the buffer with attacker-controlled content, causing denial of service or heap corruption before authentication completes.

CVSS Base Scores

version 3.1