PT-2026-70898 · Freerdp · Freerdp

CVE-2026-73242

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Published

2026-07-26

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Updated

2026-08-31

CVSS v4.0

8.3

High

VectorAV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N
Name of the Vulnerable Software and Affected Versions FreeRDP versions prior to 3.30.0
Description The kerberos DecryptMessage() function in the winpr/libwinpr/sspi/Kerberos/kerberos.c file fails to properly bound the peer-controlled GSS Wrap-token EC field before using it with RRC in IOV pointer offsets. This heap buffer overflow allows a malicious RDP peer to trigger out-of-bounds reads and in-place writes during CredSSP/NLA Kerberos decryption, which could lead to the disclosure of protected information or a denial of service.
Recommendations Update to version 3.30.0.

Exploit

Fix

Heap Based Buffer Overflow

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Weakness Enumeration

Related Identifiers

ALSA-2026:61378
BDU:2026-11521
CVE-2026-73242
GHSA-VV64-95PC-VJ9V

Affected Products

Freerdp