Reference page — cumulative record through Saturday, October 3, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2026-67293

CVE-2026-67293CRITICAL

FreeRDP before 3.29.0 Improper Certificate Hostname Validation

  AV  AC  AT  PR  UI  VC  VI  VA   CVSS    EPSS   %ile   KEV
   N   L   N   N   N   H   H   H    9.3   .0024   13.4     —

AFFECTED
  Product  Versions     Fixed
  FreeRDP  unspecified  3.29.0

TIMELINE
  Jul 29  Reserved by VulnCheck
  Aug 1   Published (CNA: VulnCheck)
  Sep 29  EXPLOIT PUBLISHED — CVE-2026-67293 (FreeRDP). Public exploit reference added.

CWE-295 · CNA: VulnCheck · CVSS v4.0 · 3 references · NVD status: Analyzed

Description

FreeRDP before 3.29.0 (affected versions <= 3.28.0) contains an improper certificate hostname validation vulnerability. The TLS hostname matcher (tls_match_hostname() in libfreerdp/crypto/tls.c) treats a wildcard pattern such as *.example.com as matching any hostname ending in .example.com, so it incorrectly accepts a wildcard certificate for multi-label subdomains like a.b.example.com (which OpenSSL's X509_check_host() rejects). This weakens TLS server authentication under wildcard-certificate conditions.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
July 29, 2026	Reserved	Reserved by VulnCheck
August 1, 2026	Published	Published (CNA: VulnCheck)
September 29, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2026-67293 (FreeRDP). Public exploit reference added.

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
FreeRDP	FreeRDP	—	—	3.29.0

Weaknesses

CWE-295

References (3)

https://github.com/FreeRDP/FreeRDP/commit/f3b4347105114fe7453828736bea069999af319f [Patch]
https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-5wr6-8m8j-3h7f [Exploit, Vendor Advisory]
https://www.vulncheck.com/advisories/freerdp-before-improper-certificate-hostname-validation [Third Party Advisory]

Authoritative record: CVE-2026-67293 at cve.org

Vendors: freerdp

Weaknesses: CWE-295

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-67293 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Saturday, October 3, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.