PT-2026-44983 · Freerdp · Freerdp

Yeonba0918 · Published 2026-05-29 · Updated 2026-05-30 · CVE-2026-44422

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions FreeRDP versions prior to 3.26.0

Description The RDPEAR NDR parser in FreeRDP accepts a single non-null NDR pointer ref-id for multiple logical pointer fields without tracking the expected NDR type or ownership of the pointed object. If the same ref-id is reused across two pointer fields, the parser assigns the same heap object to both output fields. Subsequently, the generic destructor processes each field independently, leading to a heap use-after-free or double-free condition in the client's RDPEAR authentication-redirection path, which can be triggered by a malicious server.

Recommendations Update to version 3.26.0.

Exploit

Fix

Double Free

Use After Free

Weakness Enumeration

CWE-415

CWE-416

Related Identifiers

CVE-2026-44422

Affected Products

Freerdp

References · 5

• 🔥 https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-j9q5-7g8m-jc9v · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-44422 · Security Note
• https://twitter.com/vuldb/status/2060693286424334341 · Twitter Post
• https://t.me/CVEtracker/55293 · Telegram Post
• https://twitter.com/VulmonFeeds/status/2060527746699206687 · Twitter Post