Description
FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.30.0, FreeRDP's winpr/libwinpr/sspi/Kerberos/kerberos.c kerberos_DecryptMessage function fails to bound the peer-controlled GSS Wrap-token EC field before using it with RRC in IOV pointer offsets, allowing a malicious RDP peer to trigger out-of-bounds reads and in-place writes during CredSSP/NLA Kerberos decryption. This issue is fixed in version 3.30.0.
Published: 2026-08-11
Score: 8.3 High
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
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History

Tue, 11 Aug 2026 20:00:00 +0000

Type Values Removed Values Added
Description FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.30.0, FreeRDP's winpr/libwinpr/sspi/Kerberos/kerberos.c kerberos_DecryptMessage function fails to bound the peer-controlled GSS Wrap-token EC field before using it with RRC in IOV pointer offsets, allowing a malicious RDP peer to trigger out-of-bounds reads and in-place writes during CredSSP/NLA Kerberos decryption. This issue is fixed in version 3.30.0.
Title FreeRDP: Kerberos GSS Wrap-token `EC` field is unbounded, causing an out-of-bounds decrypt in `kerberos_DecryptMessage`
Weaknesses CWE-122
References
Metrics cvssV4_0

{'score': 8.3, 'vector': 'CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N'}

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-08-11T19:49:46.974Z

Reserved: 2026-08-11T17:18:01.597Z

Link: CVE-2026-73242

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-08-11T20:18:49.260

Modified: 2026-08-11T20:18:49.260

Link: CVE-2026-73242

cve-icon Redhat

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cve-icon OpenCVE Enrichment

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Weaknesses
  • CWE-122

    Heap-based Buffer Overflow