CVE-2026-67289

CRITICALPre-NVD 9.89.8—
EchelonGraph scoreHIGH confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-08-01. a secondary CVSS source baseline 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 9.8Exploit: None knownExposed: 0

A fix is available — apply it.

FreeRDP before 3.29.0 (affected versions <= 3.28.0) does not validate CRLF and control characters in the server-controlled RDP redirection TargetNetAddress field. This value is copied into the client's ServerHostname and, when the client connects through an HTTP proxy, is written directly into the proxy CONNECT request line and Host header by http_proxy_connect() without filtering. A malicious or compromised RDP server can send a crafted redirection PDU containing embedded control characters to inject arbitrary headers/requests into the HTTP proxy CONNECT request.

CVSS v3
9.8
EG Score
9.8(high)
EG Risk
59(Track)
EG Risk 59/100SSVC: Track

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
Severity98% × 45%
Exploitation0% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
31%
KEV
Not listed

Published

August 1, 2026

Last Modified

August 5, 2026

Advisory Details (3)

Auto-updated Aug 19, 2026
Patch available. Sources: github_commit, github.
generic

FreeRDP before 3.29.0 HTTP Proxy Request Injection via Redirection | Advisories | VulnCheck

https://www.vulncheck.com/advisories/freerdp-before-http-proxy-request-injection-via-redirection
github Patch Available

FreeRDP HTTP proxy CONNECT request injection via redirected TargetNetAddress · Advisory · FreeRDP/FreeRDP · GitHub

https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-mwwh-mhp9-q7vm
github_commit

commit f3b434710511 (FreeRDP/FreeRDP)

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

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

Vendor Advisories for CVE-2026-67289(1)

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

Patch Availability(3)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatfreerdp-2:2.11.7-11.el8_102026-08-13redhat
redhatfreerdp-2:2.11.7-7.el9_8.52026-08-13redhat
redhatfreerdp-2:3.10.3-12.el10_2.82026-08-13redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
freerdp22.10.0+dfsg1-1 ... 2.9.0+dfsg1-1~bpo11+1 (32 versions)——
Debian:12(1)
PackageVulnerable rangeFixed inDependents
freerdp22.10.0+dfsg1-1 ... 2.11.7+dfsg1-6~deb12u1 (13 versions)——
Debian:13(1)
PackageVulnerable rangeFixed inDependents
freerdp33.15.0+dfsg-2.1 ... 3.30.0+dfsg-1~bpo13+1 (43 versions)——
Debian:14(1)
PackageVulnerable rangeFixed inDependents
freerdp33.15.0+dfsg-2.1 ... 3.28.0+dfsg-2 (37 versions)3.29.0+dfsg-1—

Weakness Classification(1)

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

All Vendor Advisories

(3)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 89× in last 7d / 200× 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 200 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-67289?
CVE-2026-67289 is a critical vulnerability published on August 1, 2026. FreeRDP before 3.29.0 (affected versions <= 3.28.0) does not validate CRLF and control characters in the server-controlled RDP redirection TargetNetAddress field. This value is copied into the client's ServerHostname and, when the client connects through an HTTP proxy, is written directly into the…
When was CVE-2026-67289 disclosed?
CVE-2026-67289 was first published in the National Vulnerability Database on August 1, 2026, with the most recent update on August 5, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-67289 actively exploited?
CVE-2026-67289 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 68.6% of all scored CVEs.
What is the CVSS score of CVE-2026-67289?
CVE-2026-67289 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2026-67289?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-67289, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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