CVE-2026-25952

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.8 under NVD CVSS v3. EPSS exploit probability: 0.6%, top 54% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
Elevated
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 9.8Exploit: Elevated riskExposed: 0

A fix is available — apply it.

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.23.0, xf_SetWindowMinMaxInfo dereferences a freed xfAppWindow pointer because xf_rail_get_window in xf_rail_server_min_max_info returns an unprotected pointer from the railWindows hash table, and the main thread can concurrently delete the window (via a window delete order) while the RAIL channel thread is still using the pointer. Version 3.23.0 fixes the issue.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
75(Attend)
EG Risk 75/100SSVC: Attend

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%
Exploitation40% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
1%
EPSS %ILE
47%
KEV
Not listed

Published

February 25, 2026

Last Modified

June 17, 2026

Advisory Details (10)

Auto-updated Sep 14, 2026
Upstream fix merged — awaiting tagged release. Sources: github_commit.
github_commit

commit 1994e9844212 (FreeRDP/FreeRDP)

Fix landed in FreeRDP/FreeRDP commit 1994e9844212 — awaiting tagged release

https://github.com/FreeRDP/FreeRDP/commit/1994e9844212a6dfe0ff12309fef520e888986b5
generic

FreeRDP/client/X11/xf_window.c at 5c7aae27d0417b42b4806c2a5c583ca39dd9ef1e · FreeRDP/FreeRDP · GitHub

https://github.com/FreeRDP/FreeRDP/blob/5c7aae27d0417b42b4806c2a5c583ca39dd9ef1e/client/X11/xf_window.c#L1428
generic

FreeRDP/client/X11/xf_window.c at 5c7aae27d0417b42b4806c2a5c583ca39dd9ef1e · FreeRDP/FreeRDP · GitHub

https://github.com/FreeRDP/FreeRDP/blob/5c7aae27d0417b42b4806c2a5c583ca39dd9ef1e/client/X11/xf_window.c#L1394
generic

FreeRDP/client/X11/xf_window.c at 5c7aae27d0417b42b4806c2a5c583ca39dd9ef1e · FreeRDP/FreeRDP · GitHub

https://github.com/FreeRDP/FreeRDP/blob/5c7aae27d0417b42b4806c2a5c583ca39dd9ef1e/client/X11/xf_window.c#L1128
generic

FreeRDP/client/X11/xf_window.c at 5c7aae27d0417b42b4806c2a5c583ca39dd9ef1e · FreeRDP/FreeRDP · GitHub

https://github.com/FreeRDP/FreeRDP/blob/5c7aae27d0417b42b4806c2a5c583ca39dd9ef1e/client/X11/xf_window.c#L1111
generic

FreeRDP/client/X11/xf_rail.c at 5c7aae27d0417b42b4806c2a5c583ca39dd9ef1e · FreeRDP/FreeRDP · GitHub

https://github.com/FreeRDP/FreeRDP/blob/5c7aae27d0417b42b4806c2a5c583ca39dd9ef1e/client/X11/xf_rail.c#L643
generic

FreeRDP/client/X11/xf_rail.c at 5c7aae27d0417b42b4806c2a5c583ca39dd9ef1e · FreeRDP/FreeRDP · GitHub

https://github.com/FreeRDP/FreeRDP/blob/5c7aae27d0417b42b4806c2a5c583ca39dd9ef1e/client/X11/xf_rail.c#L1230-L1238
generic

FreeRDP/client/X11/xf_rail.c at 5c7aae27d0417b42b4806c2a5c583ca39dd9ef1e · FreeRDP/FreeRDP · GitHub

https://github.com/FreeRDP/FreeRDP/blob/5c7aae27d0417b42b4806c2a5c583ca39dd9ef1e/client/X11/xf_rail.c#L1178
generic

FreeRDP/client/X11/xf_rail.c at 5c7aae27d0417b42b4806c2a5c583ca39dd9ef1e · FreeRDP/FreeRDP · GitHub

https://github.com/FreeRDP/FreeRDP/blob/5c7aae27d0417b42b4806c2a5c583ca39dd9ef1e/client/X11/xf_rail.c#L1174
generic

FreeRDP/client/X11/xf_rail.c at 5c7aae27d0417b42b4806c2a5c583ca39dd9ef1e · FreeRDP/FreeRDP · GitHub

https://github.com/FreeRDP/FreeRDP/blob/5c7aae27d0417b42b4806c2a5c583ca39dd9ef1e/client/X11/xf_rail.c#L1167

Vendor Advisories for CVE-2026-25952(14)

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

Patch Availability(14)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatfreerdp-0:2.1.1-5.el7_9.92026-05-26redhat
redhatfreerdp-2:3.10.3-3.el10_0.72026-05-26redhat
redhatfreerdp-2:2.2.0-14.el8_42026-05-20redhat
redhatfreerdp-2:3.10.3-12.el10_2.52026-05-19redhat
redhatfreerdp-2:2.11.7-7.el9_8.32026-05-19redhat
redhatfreerdp-2:2.2.0-7.el8_6.82026-05-13redhat
redhatfreerdp-2:2.11.7-1.el9_6.102026-05-13redhat
redhatfreerdp-2:2.11.7-1.el9_7.72026-05-13redhat
redhatfreerdp-2:2.2.0-12.el8_8.82026-05-13redhat
redhatfreerdp-2:2.11.2-1.el9_4.82026-05-13redhat
redhatfreerdp-2:2.4.1-3.el9_0.72026-05-12redhat
redhatfreerdp-2:2.4.1-6.el9_2.92026-05-12redhat
redhatfreerdp-2:3.10.3-5.el10_1.82026-05-11redhat
redhatfreerdp-2:2.11.7-9.el8_102026-05-11redhat

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-2.13.15.0+dfsg-2.1+deb13u1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
freerdp33.15.0+dfsg-2.1 ... 3.23.0+dfsg-1~bpo13+1 (20 versions)3.23.0+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 5× in last 7d / 26× 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.

  1. 2026-09-13 16:47 UTCEPSS rescore
  2. 2026-09-12 15:01 UTCEPSS rescore
  3. 2026-09-11 14:52 UTCEPSS rescore
  4. 2026-09-10 09:34 UTCEPSS rescore
  5. 2026-09-08 22:00 UTCEPSS rescore
  6. 2026-09-07 16:01 UTCEPSS rescore
  7. 2026-09-06 13:47 UTCEPSS rescore
  8. 2026-09-06 13:47 UTCEPSS rescore
  9. 2026-09-04 05:06 UTCEPSS rescore
  10. 2026-09-02 14:11 UTCEPSS rescore
  11. 2026-09-01 13:53 UTCEPSS rescore
  12. 2026-09-01 04:39 UTCEPSS rescore
  13. 2026-09-01 01:34 UTCOSV refresh
  14. 2026-08-30 19:17 UTCEPSS rescore
  15. 2026-08-30 01:22 UTCEPSS rescore
  16. 2026-08-28 21:41 UTCEPSS rescore
  17. 2026-08-27 14:25 UTCEPSS rescore
  18. 2026-08-26 14:46 UTCEPSS rescore
  19. 2026-08-25 13:48 UTCEPSS rescore
  20. 2026-08-23 00:19 UTCEPSS rescore
  21. 2026-08-21 23:49 UTCEPSS rescore
  22. 2026-08-20 22:55 UTCEPSS rescore
  23. 2026-08-19 17:03 UTCEPSS rescore
  24. 2026-08-18 13:48 UTCEPSS rescore
  25. 2026-08-17 13:47 UTCEPSS rescore
Show 54 more
  1. 2026-08-16 14:56 UTCEPSS rescore
  2. 2026-08-16 02:14 UTCEPSS rescore
  3. 2026-08-15 01:30 UTCEPSS rescore
  4. 2026-08-15 01:22 UTCVendor advisory
  5. 2026-08-14 21:11 UTCVendor advisory
  6. 2026-08-14 13:09 UTCVendor advisory
  7. 2026-08-14 08:59 UTCEG score recompute
  8. 2026-08-14 08:59 UTCVendor advisory
  9. 2026-08-13 22:00 UTCEPSS rescore
  10. 2026-08-13 00:59 UTCEG score recompute
  11. 2026-08-13 00:59 UTCVendor advisory
  12. 2026-08-12 13:50 UTCEPSS rescore
  13. 2026-08-11 23:55 UTCEG score recompute
  14. 2026-08-11 23:55 UTCVendor advisory
  15. 2026-08-11 13:42 UTCEPSS rescore
  16. 2026-08-11 06:20 UTCEG score recompute
  17. 2026-08-11 06:20 UTCVendor advisory
  18. 2026-08-11 00:00 UTCEPSS rescore
  19. 2026-08-10 13:14 UTCVendor advisory
  20. 2026-08-10 08:45 UTCVendor advisory
  21. 2026-08-10 02:19 UTCVendor advisory
  22. 2026-08-09 22:09 UTCVendor advisory
  23. 2026-08-09 17:59 UTCVendor advisory
  24. 2026-08-09 13:49 UTCEG score recompute
  25. 2026-08-09 13:49 UTCVendor advisory
  26. 2026-08-09 13:46 UTCEPSS rescore
  27. 2026-08-09 08:37 UTCEG score recompute
  28. 2026-08-09 08:37 UTCVendor advisory
  29. 2026-08-08 16:37 UTCEPSS rescore
  30. 2026-08-08 09:11 UTCVendor advisory
  31. 2026-08-08 05:01 UTCVendor advisory
  32. 2026-08-08 00:51 UTCVendor advisory
  33. 2026-08-07 20:40 UTCEG score recompute
  34. 2026-08-07 20:40 UTCVendor advisory
  35. 2026-08-06 13:46 UTCEPSS rescore
  36. 2026-08-06 07:09 UTCVendor advisory
  37. 2026-08-06 02:59 UTCEG score recompute
  38. 2026-08-06 02:59 UTCVendor advisory
  39. 2026-08-05 19:17 UTCEPSS rescore
  40. 2026-08-04 15:10 UTCEPSS rescore
  41. 2026-08-04 05:49 UTCEG score recompute
  42. 2026-08-04 05:49 UTCVendor advisory
  43. 2026-08-03 10:36 UTCEPSS rescore
  44. 2026-08-02 23:42 UTCVendor advisory
  45. 2026-08-02 19:32 UTCEG score recompute▲ 4.30
  46. 2026-08-02 19:32 UTCVendor advisory
  47. 2026-08-02 02:26 UTCEPSS rescore
  48. 2026-08-01 04:16 UTCEPSS rescore
  49. 2026-07-30 16:27 UTCEPSS rescore
  50. 2026-07-30 01:30 UTCEPSS rescore
  51. 2026-07-28 15:36 UTCEPSS rescore
  52. 2026-07-27 12:55 UTCEG score recompute
  53. 2026-07-27 12:55 UTCVendor advisory
  54. 2026-07-27 12:50 UTCOSV refresh

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-25952?
CVE-2026-25952 is a critical vulnerability published on February 25, 2026. FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.23.0, xfSetWindowMinMaxInfo dereferences a freed xfAppWindow pointer because xfrailgetwindow in xfrailserverminmax_info returns an unprotected pointer from the railWindows hash table, and the main thread can…
When was CVE-2026-25952 disclosed?
CVE-2026-25952 was first published in the National Vulnerability Database on February 25, 2026, with the most recent update on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-25952 actively exploited?
CVE-2026-25952 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 53.2% of all scored CVEs.
What is the CVSS score of CVE-2026-25952?
CVE-2026-25952 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2026-25952?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-25952, 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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