CVE-2026-67293

MEDIUMPre-NVD 4.24.2—
EchelonGraph scoreMEDIUM confidence

Score 4.2 from GitHub Security Advisory (severity: CRITICAL) published 2026-08-01. A secondary CVSS source baseline 4.2; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
4.2EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 4.2Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

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.

CVSS v3
4.2
EG Score
4.2MEDIUMmedium confidence
EG Risk
19
EG Risk 19/100CISA SSVC

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity42% × 45%
Exploitation0% × 40%
Automatability0% × 15%
CISA SSVC: Track at low or medium mission impact; Track* at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.2%
EPSS %ILE
13th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track* at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

August 1, 2026

Last Modified

September 29, 2026

Advisory Details (3)

Auto-updated Aug 1, 2026
Patch available. Sources: github, github_commit.
generic

FreeRDP before 3.29.0 Improper Certificate Hostname Validation | Advisories | VulnCheck

https://www.vulncheck.com/advisories/freerdp-before-improper-certificate-hostname-validation
github_commit

commit f3b434710511 (FreeRDP/FreeRDP)

Fix landed in FreeRDP/FreeRDP commit f3b434710511 — awaiting tagged release

https://github.com/FreeRDP/FreeRDP/commit/f3b4347105114fe7453828736bea069999af319f
github Patch Available

FreeRDP wildcard hostname matching accepts multi-label subdomains · Advisory · FreeRDP/FreeRDP · GitHub

https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-5wr6-8m8j-3h7f

Vendor Advisories for CVE-2026-67293(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Affected Packages

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFix by version rangeDependents
freerdp22.10.0+dfsg1-1 ... 2.9.0+dfsg1-1~bpo11+1 (32 versions)
  • every version on: no fix on record
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
freerdp22.10.0+dfsg1-1 ... 2.11.7+dfsg1-6~deb12u1 (13 versions)
  • every version on: no fix on record
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
freerdp33.15.0+dfsg-2.1 ... 3.32.1+dfsg-1~bpo13+1 (49 versions)
  • every version on: no fix on record
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
freerdp33.15.0+dfsg-2.1 ... 3.28.0+dfsg-2 (37 versions)
  • every version up to 3.29.0+dfsg-1: fixed in 3.29.0+dfsg-1
—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 16× in last 7d / 63× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 162 total refreshes for this CVE.

  1. 2026-10-04 23:22 UTCEPSS rescore
  2. 2026-10-04 06:26 UTCEG score recompute
  3. 2026-10-04 06:26 UTCGHSA enrichment
  4. 2026-10-03 14:26 UTCEPSS rescore
  5. 2026-10-02 17:56 UTCEPSS rescore
  6. 2026-10-02 10:30 UTCEG score recompute
  7. 2026-10-02 10:30 UTCGHSA enrichment
  8. 2026-10-01 19:50 UTCEPSS rescore
  9. 2026-10-01 02:43 UTCEG score recompute
  10. 2026-10-01 02:43 UTCGHSA enrichment
  11. 2026-09-30 15:03 UTCEPSS rescore
  12. 2026-09-29 16:46 UTCEG score recompute
  13. 2026-09-29 16:46 UTCGHSA enrichment
  14. 2026-09-29 06:47 UTCEG score recompute
  15. 2026-09-29 06:47 UTCGHSA enrichment
  16. 2026-09-28 13:52 UTCEPSS rescore
  17. 2026-09-27 18:23 UTCEG score recompute
  18. 2026-09-27 18:23 UTCGHSA enrichment
  19. 2026-09-27 13:48 UTCEPSS rescore
  20. 2026-09-26 15:59 UTCEPSS rescore
  21. 2026-09-24 10:52 UTCEG score recompute
  22. 2026-09-24 10:52 UTCGHSA enrichment
  23. 2026-09-23 17:54 UTCEPSS rescore
  24. 2026-09-23 09:00 UTCEG score recompute
  25. 2026-09-23 09:00 UTCGHSA enrichment
Show 75 more
  1. 2026-09-22 07:15 UTCEG score recompute
  2. 2026-09-22 07:15 UTCGHSA enrichment
  3. 2026-09-20 21:12 UTCEG score recompute
  4. 2026-09-20 21:12 UTCGHSA enrichment
  5. 2026-09-20 20:16 UTCEPSS rescore
  6. 2026-09-19 13:44 UTCEG score recompute
  7. 2026-09-19 13:44 UTCGHSA enrichment
  8. 2026-09-18 19:28 UTCEPSS rescore
  9. 2026-09-18 10:01 UTCEG score recompute
  10. 2026-09-18 10:01 UTCGHSA enrichment
  11. 2026-09-17 08:16 UTCEG score recompute
  12. 2026-09-17 08:16 UTCGHSA enrichment
  13. 2026-09-16 14:08 UTCEPSS rescore
  14. 2026-09-16 05:24 UTCEG score recompute
  15. 2026-09-16 05:24 UTCGHSA enrichment
  16. 2026-09-16 05:15 UTCEPSS rescore
  17. 2026-09-15 02:58 UTCGHSA enrichment
  18. 2026-09-13 18:26 UTCEG score recompute
  19. 2026-09-13 18:26 UTCGHSA enrichment
  20. 2026-09-12 16:41 UTCEG score recompute
  21. 2026-09-12 16:41 UTCGHSA enrichment
  22. 2026-09-11 14:55 UTCEG score recompute
  23. 2026-09-11 14:55 UTCGHSA enrichment
  24. 2026-09-11 14:53 UTCEPSS rescore
  25. 2026-09-11 09:37 UTCEPSS rescore
  26. 2026-09-10 08:53 UTCGHSA enrichment
  27. 2026-09-09 06:57 UTCEG score recompute
  28. 2026-09-09 06:57 UTCGHSA enrichment
  29. 2026-09-08 22:01 UTCEPSS rescore
  30. 2026-09-07 22:31 UTCEG score recompute
  31. 2026-09-07 22:31 UTCGHSA enrichment
  32. 2026-09-07 16:01 UTCEPSS rescore
  33. 2026-09-06 20:46 UTCEG score recompute
  34. 2026-09-06 20:46 UTCGHSA enrichment
  35. 2026-09-06 13:47 UTCEPSS rescore
  36. 2026-09-05 18:44 UTCEG score recompute
  37. 2026-09-05 18:44 UTCGHSA enrichment
  38. 2026-09-05 15:31 UTCEPSS rescore
  39. 2026-09-04 11:20 UTCEG score recompute
  40. 2026-09-04 11:20 UTCGHSA enrichment
  41. 2026-09-04 05:07 UTCEPSS rescore
  42. 2026-09-03 09:03 UTCGHSA enrichment
  43. 2026-09-01 22:33 UTCEG score recompute
  44. 2026-09-01 22:33 UTCGHSA enrichment
  45. 2026-09-01 13:54 UTCEPSS rescore
  46. 2026-09-01 04:40 UTCEPSS rescore
  47. 2026-08-31 20:47 UTCEG score recompute
  48. 2026-08-31 20:47 UTCGHSA enrichment
  49. 2026-08-30 23:59 UTCEG score recompute
  50. 2026-08-30 23:59 UTCGHSA enrichment
  51. 2026-08-30 19:17 UTCEPSS rescore
  52. 2026-08-30 01:22 UTCEPSS rescore
  53. 2026-08-29 22:14 UTCEG score recompute
  54. 2026-08-29 22:14 UTCGHSA enrichment
  55. 2026-08-28 21:42 UTCEPSS rescore
  56. 2026-08-28 04:42 UTCEG score recompute
  57. 2026-08-28 04:42 UTCGHSA enrichment
  58. 2026-08-27 02:56 UTCEG score recompute
  59. 2026-08-27 02:56 UTCGHSA enrichment
  60. 2026-08-26 14:47 UTCEPSS rescore
  61. 2026-08-26 01:11 UTCEG score recompute
  62. 2026-08-26 01:11 UTCGHSA enrichment
  63. 2026-08-25 13:49 UTCEPSS rescore
  64. 2026-08-24 23:25 UTCEG score recompute
  65. 2026-08-24 23:25 UTCGHSA enrichment
  66. 2026-08-23 21:40 UTCGHSA enrichment
  67. 2026-08-22 19:55 UTCEG score recompute
  68. 2026-08-22 19:55 UTCGHSA enrichment
  69. 2026-08-21 23:49 UTCEPSS rescore
  70. 2026-08-21 18:10 UTCEG score recompute
  71. 2026-08-21 18:10 UTCGHSA enrichment
  72. 2026-08-20 22:56 UTCEPSS rescore
  73. 2026-08-20 16:25 UTCEG score recompute
  74. 2026-08-20 16:25 UTCGHSA enrichment
  75. 2026-08-19 17:04 UTCEPSS rescore

Related CVEs(same product + same CWE)

Frequently asked(5)

What is CVE-2026-67293?
CVE-2026-67293 is a medium vulnerability published on August 1, 2026. FreeRDP before 3.29.0 (affected versions <= 3.28.0) contains an improper certificate hostname validation vulnerability. The TLS hostname matcher (tlsmatchhostname() in libfreerdp/crypto/tls.c) treats a wildcard pattern such as *.example.com as matching any hostname ending in .example.com, so it…
When was CVE-2026-67293 disclosed?
CVE-2026-67293 was first published on August 1, 2026, with the most recent update on September 29, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-67293 actively exploited?
CVE-2026-67293 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (13th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-67293?
CVE-2026-67293 has a CVSS base score of 4.2 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-67293?
A fix for CVE-2026-67293 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-67293 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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