CVE-2026-23948

HIGHNVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.5 under NVD CVSS v3. EPSS exploit probability: 0.5%, top 62% 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
7.5
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 7.5Exploit: NoneExposed: 0

A fix is available — apply it.

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.22.0, a NULL pointer dereference vulnerability in rdp_write_logon_info_v2() allows a malicious RDP server to crash FreeRDP proxy by sending a specially crafted LogonInfoV2 PDU with cbDomain=0 or cbUserName=0. This vulnerability is fixed in 3.22.0.

CVSS v3
7.5
EG Score
7.5(medium)
EG Risk
49(Track)
EG Risk 49/100SSVC: 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
Severity75% × 45%
Exploitation0% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS
37.8%
KEV
Not listed

Published

February 9, 2026

Last Modified

February 10, 2026

Advisory Details (2)

Auto-updated Jun 10, 2026
Patch available. Sources: github_commit, github.
github Patch Available

NULL Pointer Dereference in `rdp_write_logon_info_v2()` · Advisory · FreeRDP/FreeRDP · GitHub

https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-6f3c-qvqq-2px5
github_commit

commit 4d44e3c09765 (FreeRDP/FreeRDP)

Fix landed in FreeRDP/FreeRDP commit 4d44e3c09765 — awaiting tagged release

https://github.com/FreeRDP/FreeRDP/commit/4d44e3c097656a8b9ec696353647b0888ca45860

Vendor Advisories for CVE-2026-23948(7)

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

Patch Availability(15)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntuwinpr3-utils (3.16.0+dfsg-2ubuntu0.1) @ questing2026-06-12ubuntu
redhatfreerdp-2:3.10.3-12.el10_2.22026-05-19redhat
redhatfreerdp-0:2.1.1-5.el7_9.72026-04-28redhat
redhatfreerdp-2:2.2.0-12.el8_42026-04-27redhat
redhatfreerdp-2:2.0.0-46.rc4.el8_2.102026-04-27redhat
redhatfreerdp-2:2.2.0-7.el8_6.52026-04-27redhat
redhatfreerdp-2:2.2.0-12.el8_8.52026-04-23redhat
redhatfreerdp-2:2.4.1-6.el9_2.62026-04-22redhat
redhatfreerdp-2:2.4.1-3.el9_0.42026-04-22redhat
redhatfreerdp-2:2.11.2-1.el9_4.52026-04-08redhat
redhatfreerdp-2:3.10.3-5.el10_1.52026-04-07redhat
redhatfreerdp-2:3.10.3-3.el10_0.52026-04-07redhat
redhatfreerdp-2:2.11.7-1.el9_6.72026-04-07redhat
redhatfreerdp-2:2.11.7-6.el8_102026-04-07redhat
redhatfreerdp-2:2.11.7-1.el9_7.52026-04-01redhat

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.

Weakness Classification(1)

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

Additional Vendor Advisories

(8)

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 14× in last 7d / 52× 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 104 total refreshes for this CVE.

  1. 2026-07-23 03:07 UTCEG score recompute
  2. 2026-07-22 14:08 UTCEPSS rescore
  3. 2026-07-21 15:24 UTCEPSS rescore
  4. 2026-07-21 15:24 UTCEPSS rescore
  5. 2026-07-20 17:08 UTCEPSS rescore
  6. 2026-07-19 14:31 UTCEPSS rescore
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  8. 2026-07-19 02:29 UTCEPSS rescore
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  10. 2026-07-18 10:04 UTCEPSS rescore
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  12. 2026-07-17 17:29 UTCOSV refresh
  13. 2026-07-16 17:03 UTCEPSS rescore
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  22. 2026-07-12 05:46 UTCEPSS rescore
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  24. 2026-07-11 08:27 UTCEPSS rescore
  25. 2026-07-09 19:10 UTCEPSS rescore
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  1. 2026-07-08 15:15 UTCEPSS rescore
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  3. 2026-07-07 13:46 UTCEPSS rescore
  4. 2026-07-06 16:27 UTCEPSS rescore
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  13. 2026-06-30 23:22 UTCEPSS rescore
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  15. 2026-06-29 15:32 UTCOSV refresh
  16. 2026-06-29 14:06 UTCEPSS rescore
  17. 2026-06-28 14:07 UTCEPSS rescore
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  19. 2026-06-28 04:56 UTCEPSS rescore
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  21. 2026-06-27 03:08 UTCEPSS rescore
  22. 2026-06-25 13:49 UTCEPSS rescore
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  24. 2026-06-24 14:05 UTCEPSS rescore
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  26. 2026-06-23 21:33 UTCEPSS rescore
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  28. 2026-06-22 14:25 UTCEPSS rescore
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  30. 2026-06-21 14:56 UTCEPSS rescore
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  34. 2026-06-19 19:25 UTCEPSS rescore
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  36. 2026-06-18 17:52 UTCEPSS rescore
  37. 2026-06-17 17:53 UTCEPSS rescore
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  39. 2026-06-16 17:52 UTCEPSS rescore
  40. 2026-06-15 17:48 UTCEPSS rescore
  41. 2026-06-14 23:18 UTCEPSS rescore
  42. 2026-06-13 23:00 UTCEPSS rescore
  43. 2026-06-12 23:12 UTCEPSS rescore
  44. 2026-06-12 23:12 UTCEPSS rescore
  45. 2026-06-12 05:07 UTCVendor advisory
  46. 2026-06-11 14:00 UTCEPSS rescore
  47. 2026-06-10 22:18 UTCEPSS rescore
  48. 2026-06-10 22:18 UTCEPSS rescore
  49. 2026-06-10 13:22 UTCEPSS rescore
  50. 2026-06-10 11:20 UTCVendor advisory
  51. 2026-06-08 14:17 UTCEPSS rescore
  52. 2026-06-08 14:17 UTCEPSS rescore
  53. 2026-06-08 08:40 UTCVendor advisory
  54. 2026-06-07 20:09 UTCVendor advisory
  55. 2026-06-07 15:25 UTCEPSS rescore
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  58. 2026-06-06 13:47 UTCEPSS rescore
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Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-23948?
CVE-2026-23948 is a high vulnerability published on February 9, 2026. FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.22.0, a NULL pointer dereference vulnerability in rdpwritelogoninfov2() allows a malicious RDP server to crash FreeRDP proxy by sending a specially crafted LogonInfoV2 PDU with cbDomain=0 or cbUserName=0. This vulnerability…
When was CVE-2026-23948 disclosed?
CVE-2026-23948 was first published in the National Vulnerability Database on February 9, 2026, with the most recent update on February 10, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-23948 actively exploited?
CVE-2026-23948 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 37.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-23948?
CVE-2026-23948 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2026-23948?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-23948, 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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