CVE-2026-68579

CRITICALPre-NVD 9.69.6—
EchelonGraph scoreMEDIUM confidence

Score 9.6 from GitHub Security Advisory (severity: HIGH) published 2026-08-02. A secondary CVSS source baseline 9.6; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
9.6EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.5%CVSS: 9.6Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

FreeRDP before 3.30.0 (<= 3.29.0) contains a heap-based buffer overflow in the Windows clipboard client's CliprdrStream_Read function (client/Windows/wf_cliprdr.c). When an OLE paste consumer (e.g. explorer.exe) calls IStream::Read with a fixed-size buffer of cb bytes, CliprdrStream_Read requests file contents from the RDP server and then copies the response into the caller's buffer using the server-supplied length (req_fsize) instead of cb. A malicious or compromised RDP server can return an oversized CB_FILECONTENTS_RESPONSE, causing an out-of-bounds write of attacker-controlled data into the paste consumer's heap buffer when a user pastes server-offered clipboard file contents.

CVSS v3
9.6
EG Score
9.6CRITICALmedium confidence
EG Risk
58
EG Risk 58/100CISA SSVC

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
Severity96% × 45%
Exploitation0% × 40%
Automatability100% × 15%
CISA SSVC: Track at low or medium mission impact; Attend at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
0.5%
EPSS %ILE
39th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Attend at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

August 2, 2026

Last Modified

September 29, 2026

Advisory Details (3)

Auto-updated Sep 30, 2026
Patch available. Sources: github_commit, github.
generic

FreeRDP before 3.30.0 Heap Overflow via CliprdrStream_Read | Advisories | VulnCheck

https://www.vulncheck.com/advisories/freerdp-before-heap-overflow-via-cliprdrstream-read
github Patch Available

Windows clipboard: `CliprdrStream_Read` copies a server-controlled length into the caller's buffer (heap overflow) · Advisory · FreeRDP/FreeRDP · GitHub

https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-m37j-jcr2-8gcc
github_commit

commit 5e8e987b469b (FreeRDP/FreeRDP)

Fix landed in FreeRDP/FreeRDP commit 5e8e987b469b — awaiting tagged release

https://github.com/FreeRDP/FreeRDP/commit/5e8e987b469b60a3bafadf8f5afc40f91c09f458

Vendor Advisories for CVE-2026-68579(1)

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

Affected Packages

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFix by version rangeDependents
freerdp22.10.0+dfsg1-1 ... 2.9.0+dfsg1-1~bpo11+1 (32 versions)
  • every version on: no fix on record
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
freerdp22.10.0+dfsg1-1 ... 2.11.7+dfsg1-6~deb12u1 (13 versions)
  • every version on: no fix on record
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
freerdp33.15.0+dfsg-2.1 ... 3.32.1+dfsg-1~bpo13+1 (49 versions)
  • every version on: no fix on record
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
freerdp33.15.0+dfsg-2.1 ... 3.30.0+dfsg-1~bpo13+1 (39 versions)
  • every version up to 3.30.0+dfsg-1: fixed in 3.30.0+dfsg-1
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 25× in last 7d / 133× 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 378 total refreshes for this CVE.

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

Related CVEs(same product + same CWE)

Frequently asked(5)

What is CVE-2026-68579?
CVE-2026-68579 is a critical vulnerability published on August 2, 2026. FreeRDP before 3.30.0 (<= 3.29.0) contains a heap-based buffer overflow in the Windows clipboard client's CliprdrStreamRead function (client/Windows/wfcliprdr.c). When an OLE paste consumer (e.g. explorer.exe) calls IStream::Read with a fixed-size buffer of cb bytes, CliprdrStreamRead requests file…
When was CVE-2026-68579 disclosed?
CVE-2026-68579 was first published on August 2, 2026, with the most recent update on September 29, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-68579 actively exploited?
CVE-2026-68579 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.5% probability of exploitation in the next 30 days (39th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-68579?
CVE-2026-68579 has a CVSS base score of 9.6 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-68579?
A fix for CVE-2026-68579 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-68579 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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