CVE-2026-45700

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.8 under NVD CVSS v3. EPSS exploit probability: 0.6%, top 53% 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: 4%CVSS: 9.8Exploit: Elevated riskExposed: 0

A fix is available — apply it.

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.26.0, FreeRDP's planar bitmap decoder has an out-of-bounds heap write when decoding RLE planar data. In libfreerdp/codec/planar.c, freerdp_bitmap_decompress_planar() validates the X destination coordinate nXDst against the caller-provided destination stride (nDstStep) even when it is writing into the internal temp buffer pTempData. An attacker can bypass the check with a large nDstStep and a large nXDst, causing planar_decompress_plane_rle() to write past the end of pTempData. This vulnerability is fixed in 3.26.0.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
60(Track*)
EG Risk 60/100SSVC: 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%
Exploitation40% × 40%
Automatability0% × 15%
Action: Watch closely — could escalate to Attend.
EPSS PROB
4%
EPSS %ILE
91%
KEV
Not listed

Published

May 29, 2026

Last Modified

July 29, 2026

Advisory Details (13)

Auto-updated Sep 2, 2026
🔬 Proof of concept available. Patch available. Sources: redhat, github.
redhat Patch Available

Affected: Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions.

https://access.redhat.com/errata/RHSA-2026:47048
redhat Patch Available

Affected: Red Hat Enterprise Linux 10.0 Extended Update Support.

https://access.redhat.com/errata/RHSA-2026:46393
redhat Patch Available

Affected: Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support and Red Hat Enterprise Linux 8.6 Extended Update Support

https://access.redhat.com/errata/RHSA-2026:46389
redhat Patch Available

Affected: Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions and Red Hat Enterprise Linux 8.8 Telecommunications Update Serv

https://access.redhat.com/errata/RHSA-2026:46388
redhat Patch Available

Affected: Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support and Red Hat Enterprise Linux 8.4 Extended Update Support

https://access.redhat.com/errata/RHSA-2026:46384
redhat Patch Available

Affected: Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions.

https://access.redhat.com/errata/RHSA-2026:46383
redhat Patch Available

Affected: Red Hat Enterprise Linux 8.

https://access.redhat.com/errata/RHSA-2026:38501
redhat Patch Available

Affected: Red Hat Enterprise Linux 9.

https://access.redhat.com/errata/RHSA-2026:37207
redhat Patch Available

Affected: Red Hat Enterprise Linux 10.

https://access.redhat.com/errata/RHSA-2026:36203
github Patch Available🟡 PoC Available

Heap-buffer-overflow write in planar bitmap decoder · Advisory · FreeRDP/FreeRDP · GitHub

https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-mpxh-8fq3-x8mh
redhat Patch Available

Affected: Red Hat Enterprise Linux 6",

https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-45700.json
redhat Patch Available

2483470 – (CVE-2026-45700) CVE-2026-45700 freerdp: FreeRDP: Out-of-bounds write in planar bitmap decoder allows arbitrary code execution

Affected: Red Hat Enterprise Linux 10

https://bugzilla.redhat.com/show_bug.cgi?id=2483470
redhat Patch Available

cve-details

https://access.redhat.com/security/cve/CVE-2026-45700

Vendor Advisories for CVE-2026-45700(2)

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

Patch Availability(12)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntuwinpr3-utils (3.24.2+dfsg-1ubuntu1.1) @ resolute2026-08-25ubuntu
redhatfreerdp-0:2.1.1-5.el7_9.102026-07-28redhat
redhatfreerdp-2:2.4.1-6.el9_2.102026-07-28redhat
redhatfreerdp-2:2.11.7-1.el9_6.112026-07-28redhat
redhatfreerdp-2:2.11.2-1.el9_4.92026-07-27redhat
redhatfreerdp-2:3.10.3-3.el10_0.92026-07-27redhat
redhatfreerdp-2:2.2.0-14.el8_4.12026-07-27redhat
redhatfreerdp-2:2.2.0-12.el8_8.92026-07-27redhat
redhatfreerdp-2:2.2.0-7.el8_6.92026-07-27redhat
redhatfreerdp-2:2.11.7-10.el8_102026-07-13redhat
redhatfreerdp-2:2.11.7-7.el9_8.42026-07-09redhat
redhatfreerdp-2:3.10.3-12.el10_2.62026-07-07redhat

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 ... 3.26.0+dfsg-1~bpo13+1 (32 versions)3.26.0+dfsg-1—

Weakness Classification(1)

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

Additional Vendor Advisories

(10)

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 / 111× 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 284 total refreshes for this CVE.

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

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-45700?
CVE-2026-45700 is a critical vulnerability published on May 29, 2026. FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.26.0, FreeRDP's planar bitmap decoder has an out-of-bounds heap write when decoding RLE planar data. In libfreerdp/codec/planar.c, freerdpbitmapdecompressplanar() validates the X destination coordinate nXDst against the…
When was CVE-2026-45700 disclosed?
CVE-2026-45700 was first published in the National Vulnerability Database on May 29, 2026, with the most recent update on July 29, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-45700 actively exploited?
CVE-2026-45700 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 4% probability of exploitation in the next 30 days, which ranks it in the top 9.4% of all scored CVEs.
What is the CVSS score of CVE-2026-45700?
CVE-2026-45700 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2026-45700?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-45700, 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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