CVE-2026-57156

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.8 under NVD CVSS v3. EPSS exploit probability: 0.7%, top 50% 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 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: 1%CVSS: 9.8Exploit: None knownExposed: 0

A fix is available — apply it.

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.28.0 on 32-bit builds, FreeRDP clients contain an integer overflow in update_read_delta_points in libfreerdp/core/orders.c when multiplying an attacker-controlled point count by sizeof(DELTA_POINT), allowing a malicious RDP peer to allocate an undersized heap buffer and then write beyond it during initialization. This issue is fixed in version 3.28.0.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
44(Track)
EG Risk 44/100SSVC: 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%
Exploitation1% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
50%
KEV
Not listed

Published

July 10, 2026

Last Modified

July 15, 2026

Advisory Details (4)

Auto-updated Aug 29, 2026
🔬 Proof of concept available. Patch available. Sources: github_commit, github_pr, github_release, github.
github Patch Available🟡 PoC Available

Integer overflow leading to heap buffer overflow in FreeRDP Orders Delta Points parsing · Advisory · FreeRDP/FreeRDP · GitHub

https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-v5wf-j8j4-77h7
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

[core,orders] fix inverted overflow guard in update_read_delta_points

Fix merged in FreeRDP/FreeRDP PR #12938 on 2026-06-22 — awaiting tagged release

https://github.com/FreeRDP/FreeRDP/pull/12938
github_commit

commit 487f35daccb3 (FreeRDP/FreeRDP)

Fix landed in FreeRDP/FreeRDP commit 487f35daccb3 — awaiting tagged release

https://github.com/FreeRDP/FreeRDP/commit/487f35daccb36a6224e530dcd8fa60850825f823

Patch Availability(1)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntuwinpr3-utils (3.30.0+dfsg-0ubuntu0.26.04.1) @ resolute2026-08-30ubuntu

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

Weakness Classification(2)

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 30× in last 7d / 208× 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 262 total refreshes for this CVE.

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

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-57156?
CVE-2026-57156 is a critical vulnerability published on July 10, 2026. FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.28.0 on 32-bit builds, FreeRDP clients contain an integer overflow in updatereaddeltapoints in libfreerdp/core/orders.c when multiplying an attacker-controlled point count by sizeof(DELTAPOINT), allowing a malicious RDP…
When was CVE-2026-57156 disclosed?
CVE-2026-57156 was first published in the National Vulnerability Database on July 10, 2026, with the most recent update on July 15, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-57156 actively exploited?
CVE-2026-57156 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 49.8% of all scored CVEs.
What is the CVSS score of CVE-2026-57156?
CVE-2026-57156 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2026-57156?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-57156, 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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