CVE-2026-57158

CRITICALNVD 9.19.1—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.1 under NVD CVSS v3. EPSS exploit probability: 0.5%, top 61% 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
Trending — 3 sources updated this weekElevated
9.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 9.1Exploit: Elevated riskExposed: 0

A fix is available — apply it.

FreeRDP is a free implementation of the Remote Desktop Protocol. From 3.21.0 before 3.28.0, FreeRDP clients using the GFX pipeline contain an incomplete fix for CVE-2026-23530 in planar_decompress_plane_rle_only in libfreerdp/codec/planar.c, allowing a malicious RDP server to send a truncated RDPGFX_CMDID_WIRETOSURFACE_1 planar payload that reads one byte past the input buffer. This issue is fixed in version 3.28.0.

CVSS v3
9.1
EG Score
9.1(medium)
EG Risk
72(Attend)
EG Risk 72/100SSVC: 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
Severity91% × 45%
Exploitation40% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
0%
EPSS %ILE
39%
KEV
Not listed

Published

July 10, 2026

Last Modified

July 14, 2026

Advisory Details (4)

Auto-updated Sep 16, 2026
🔬 Proof of concept available. Patch available. Sources: github_commit, github_pr, github_release, github.
github Patch Available🟡 PoC Available

planar_decompress_plane_rle_only: heap OOB read — incomplete fix for CVE-2026-23530 · Advisory · FreeRDP/FreeRDP · GitHub

https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-mp3f-59pg-c5pp
github_release Patch Available

3.28.0

Patch available: FreeRDP/FreeRDP 3.28.0

https://github.com/FreeRDP/FreeRDP/releases/tag/3.28.0
github_pr

[codec,planar] fix range check, abort early

Fix merged in FreeRDP/FreeRDP PR #12952 on 2026-06-23 — awaiting tagged release

https://github.com/FreeRDP/FreeRDP/pull/12952
github_commit

commit a7e797626fcb (FreeRDP/FreeRDP)

Fix landed in FreeRDP/FreeRDP commit a7e797626fcb — awaiting tagged release

https://github.com/FreeRDP/FreeRDP/commit/a7e797626fcb7f1d556ce63febb84f9f4a822731

Patch Availability(1)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntuwinpr3-utils (3.30.0+dfsg-0ubuntu0.26.04.1) @ resolute2026-09-18ubuntu

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 ... 3.27.1+dfsg-1 (35 versions)3.28.0+dfsg-1—

Weakness Classification(1)

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

All Vendor Advisories

(1)

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 11× in last 7d / 85× 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 294 total refreshes for this CVE.

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

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-57158?
CVE-2026-57158 is a critical vulnerability published on July 10, 2026. FreeRDP is a free implementation of the Remote Desktop Protocol. From 3.21.0 before 3.28.0, FreeRDP clients using the GFX pipeline contain an incomplete fix for CVE-2026-23530 in planardecompressplanerleonly in libfreerdp/codec/planar.c, allowing a malicious RDP server to send a truncated…
When was CVE-2026-57158 disclosed?
CVE-2026-57158 was first published in the National Vulnerability Database on July 10, 2026, with the most recent update on July 14, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-57158 actively exploited?
CVE-2026-57158 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 60.9% of all scored CVEs.
What is the CVSS score of CVE-2026-57158?
CVE-2026-57158 has a CVSS v3 base score of 9.1 (NVD).
How do I remediate CVE-2026-57158?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-57158, 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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