CVE-2026-67289

CRITICALPre-NVD 9.89.8—
EchelonGraph scoreMEDIUM 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(medium)
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
34%
KEV
Not listed

Published

August 1, 2026

Last Modified

August 31, 2026

Advisory Details (3)

Auto-updated Sep 14, 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(11)

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

Patch Availability(11)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatfreerdp-0:2.1.1-5.el7_9.112026-09-02redhat
redhatfreerdp-2:2.2.0-7.el8_6.112026-08-31redhat
redhatfreerdp-2:2.2.0-12.el8_8.102026-08-31redhat
redhatfreerdp-2:2.2.0-14.el8_4.22026-08-26redhat
redhatfreerdp-2:2.4.1-6.el9_2.112026-08-24redhat
redhatfreerdp-2:3.10.3-3.el10_0.112026-08-24redhat
redhatfreerdp-2:2.11.2-1.el9_4.102026-08-24redhat
redhatfreerdp-2:2.11.7-1.el9_6.122026-08-24redhat
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 ... 3.31.0+dfsg-1 (44 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.

Additional Vendor Advisories

(1)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 64× in last 7d / 277× 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 465 total refreshes for this CVE.

  1. 2026-09-19 04:15 UTCVendor advisory
  2. 2026-09-19 04:15 UTCGHSA enrichment
  3. 2026-09-18 23:59 UTCEG score recompute
  4. 2026-09-18 23:59 UTCVendor advisory
  5. 2026-09-18 23:59 UTCGHSA enrichment
  6. 2026-09-18 19:28 UTCEPSS rescore
  7. 2026-09-18 19:23 UTCVendor advisory
  8. 2026-09-18 19:23 UTCGHSA enrichment
  9. 2026-09-18 14:51 UTCVendor advisory
  10. 2026-09-18 14:51 UTCGHSA enrichment
  11. 2026-09-18 09:50 UTCVendor advisory
  12. 2026-09-18 09:50 UTCGHSA enrichment
  13. 2026-09-18 05:33 UTCVendor advisory
  14. 2026-09-18 05:33 UTCGHSA enrichment
  15. 2026-09-18 01:15 UTCEG score recompute
  16. 2026-09-18 01:15 UTCVendor advisory
  17. 2026-09-18 01:15 UTCGHSA enrichment
  18. 2026-09-17 10:28 UTCVendor advisory
  19. 2026-09-17 10:28 UTCGHSA enrichment
  20. 2026-09-17 06:11 UTCVendor advisory
  21. 2026-09-17 06:11 UTCGHSA enrichment
  22. 2026-09-17 01:23 UTCEG score recompute
  23. 2026-09-17 01:23 UTCVendor advisory
  24. 2026-09-17 01:23 UTCGHSA enrichment
  25. 2026-09-16 14:08 UTCEPSS rescore
Show 75 more
  1. 2026-09-16 11:19 UTCVendor advisory
  2. 2026-09-16 11:19 UTCGHSA enrichment
  3. 2026-09-16 05:24 UTCEG score recompute
  4. 2026-09-16 05:24 UTCVendor advisory
  5. 2026-09-16 05:24 UTCGHSA enrichment
  6. 2026-09-16 05:15 UTCEPSS rescore
  7. 2026-09-15 07:14 UTCEG score recompute
  8. 2026-09-15 07:14 UTCVendor advisory
  9. 2026-09-15 07:14 UTCGHSA enrichment
  10. 2026-09-15 02:56 UTCVendor advisory
  11. 2026-09-15 02:56 UTCGHSA enrichment
  12. 2026-09-14 13:20 UTCVendor advisory
  13. 2026-09-14 13:20 UTCGHSA enrichment
  14. 2026-09-14 08:28 UTCVendor advisory
  15. 2026-09-14 08:28 UTCGHSA enrichment
  16. 2026-09-14 04:11 UTCVendor advisory
  17. 2026-09-14 04:11 UTCGHSA enrichment
  18. 2026-09-13 23:55 UTCVendor advisory
  19. 2026-09-13 23:55 UTCGHSA enrichment
  20. 2026-09-13 19:38 UTCEG score recompute
  21. 2026-09-13 19:38 UTCVendor advisory
  22. 2026-09-13 19:38 UTCGHSA enrichment
  23. 2026-09-13 15:12 UTCVendor advisory
  24. 2026-09-13 15:12 UTCGHSA enrichment
  25. 2026-09-13 10:55 UTCVendor advisory
  26. 2026-09-13 10:55 UTCGHSA enrichment
  27. 2026-09-13 06:29 UTCVendor advisory
  28. 2026-09-13 06:29 UTCGHSA enrichment
  29. 2026-09-13 02:12 UTCVendor advisory
  30. 2026-09-13 02:12 UTCGHSA enrichment
  31. 2026-09-12 21:55 UTCVendor advisory
  32. 2026-09-12 21:55 UTCGHSA enrichment
  33. 2026-09-12 17:38 UTCEG score recompute
  34. 2026-09-12 17:38 UTCVendor advisory
  35. 2026-09-12 17:38 UTCGHSA enrichment
  36. 2026-09-12 13:21 UTCVendor advisory
  37. 2026-09-12 13:21 UTCGHSA enrichment
  38. 2026-09-12 09:04 UTCVendor advisory
  39. 2026-09-12 09:04 UTCGHSA enrichment
  40. 2026-09-12 04:47 UTCVendor advisory
  41. 2026-09-12 04:47 UTCGHSA enrichment
  42. 2026-09-12 00:30 UTCVendor advisory
  43. 2026-09-12 00:30 UTCGHSA enrichment
  44. 2026-09-11 19:20 UTCVendor advisory
  45. 2026-09-11 19:20 UTCGHSA enrichment
  46. 2026-09-11 14:55 UTCEG score recompute
  47. 2026-09-11 14:55 UTCVendor advisory
  48. 2026-09-11 14:55 UTCGHSA enrichment
  49. 2026-09-11 14:53 UTCEPSS rescore
  50. 2026-09-11 09:37 UTCEPSS rescore
  51. 2026-09-11 06:03 UTCVendor advisory
  52. 2026-09-11 06:02 UTCGHSA enrichment
  53. 2026-09-11 01:13 UTCVendor advisory
  54. 2026-09-11 01:13 UTCGHSA enrichment
  55. 2026-09-10 18:49 UTCVendor advisory
  56. 2026-09-10 18:49 UTCGHSA enrichment
  57. 2026-09-10 12:54 UTCEG score recompute
  58. 2026-09-10 12:54 UTCVendor advisory
  59. 2026-09-10 12:54 UTCGHSA enrichment
  60. 2026-09-10 07:34 UTCVendor advisory
  61. 2026-09-10 07:34 UTCGHSA enrichment
  62. 2026-09-10 03:17 UTCVendor advisory
  63. 2026-09-10 03:17 UTCGHSA enrichment
  64. 2026-09-09 19:44 UTCVendor advisory
  65. 2026-09-09 19:44 UTCGHSA enrichment
  66. 2026-09-09 11:14 UTCVendor advisory
  67. 2026-09-09 11:14 UTCGHSA enrichment
  68. 2026-09-09 06:57 UTCEG score recompute
  69. 2026-09-09 06:57 UTCVendor advisory
  70. 2026-09-09 06:57 UTCGHSA enrichment
  71. 2026-09-08 22:01 UTCEPSS rescore
  72. 2026-09-08 04:39 UTCVendor advisory
  73. 2026-09-08 04:39 UTCGHSA enrichment
  74. 2026-09-07 23:37 UTCVendor advisory
  75. 2026-09-07 23:37 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 31, 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 66.3% 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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