CVE-2026-55626

HIGHNVD 7.37.3—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.3 under NVD CVSS v3. EPSS exploit probability: 0.1%, top 97% 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
7.3EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.3Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

xrdp is an open source RDP server. In versions 0.10.6 and prior, when an authenticated user session is initialized using the Xvnc backend over UNIX domain sockets, the Xvnc process is launched with insufficient authentication mechanisms. A local authenticated attacker could exploit this vulnerability to bypass intended session isolation, allowing them to unauthorizedly view or control the active desktop sessions of other users on the same system. Users using other backends, such as xorgxrdp or Xvnc over TCP sockets, are not affected. This issue has been fixed in version 0.10.6.1.

CVSS v3
7.3
EG Score
7.3(medium)
EG Risk
33(Track)
EG Risk 33/100SSVC: 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
Severity73% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
3%
KEV
Not listed

Published

July 20, 2026

Last Modified

July 28, 2026

Advisory Details (2)

Auto-updated Jul 20, 2026
Patch available. Sources: github_release, github.
github Patch Available

Missing authentication when xrdp launches Xvnc in UNIX domain socket mode · Advisory · neutrinolabs/xrdp · GitHub

https://github.com/neutrinolabs/xrdp/security/advisories/GHSA-m3xx-cpc4-982r
github_release Patch Available

xrdp v0.10.6.1

Patch available: neutrinolabs/xrdp v0.10.6.1

https://github.com/neutrinolabs/xrdp/releases/tag/v0.10.6.1

Affected Packages

(1 across 1 ecosystem)
Debian:14(1)
PackageVulnerable rangeFixed inDependents
xrdp0.10.1-3.1 ... 0.10.6.1-1 (18 versions)0.10.6.1-2—

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 11× in last 7d / 43× 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.

  1. 2026-09-11 20:31 UTCEG score recompute
  2. 2026-09-11 14:53 UTCEPSS rescore
  3. 2026-09-11 09:23 UTCEG score recompute
  4. 2026-09-10 09:35 UTCEPSS rescore
  5. 2026-09-09 11:52 UTCEG score recompute
  6. 2026-09-08 22:01 UTCEPSS rescore
  7. 2026-09-07 22:52 UTCEG score recompute
  8. 2026-09-07 16:01 UTCEPSS rescore
  9. 2026-09-06 13:47 UTCEPSS rescore
  10. 2026-09-05 20:20 UTCEG score recompute
  11. 2026-09-05 09:28 UTCEG score recompute
  12. 2026-09-04 05:06 UTCEPSS rescore
  13. 2026-09-01 13:54 UTCEPSS rescore
  14. 2026-09-01 04:40 UTCEPSS rescore
  15. 2026-08-31 00:23 UTCEG score recompute
  16. 2026-08-30 19:17 UTCEPSS rescore
  17. 2026-08-30 02:33 UTCEG score recompute
  18. 2026-08-30 01:22 UTCEPSS rescore
  19. 2026-08-28 21:41 UTCEPSS rescore
  20. 2026-08-27 22:30 UTCEG score recompute
  21. 2026-08-27 14:25 UTCEPSS rescore
  22. 2026-08-25 20:13 UTCEG score recompute
  23. 2026-08-25 13:49 UTCEPSS rescore
  24. 2026-08-24 22:11 UTCEG score recompute
  25. 2026-08-24 11:17 UTCEG score recompute
Show 65 more
  1. 2026-08-23 02:46 UTCEG score recompute
  2. 2026-08-23 00:19 UTCEPSS rescore
  3. 2026-08-22 04:58 UTCEG score recompute
  4. 2026-08-21 23:49 UTCEPSS rescore
  5. 2026-08-21 07:18 UTCEG score recompute
  6. 2026-08-20 22:55 UTCEPSS rescore
  7. 2026-08-19 22:48 UTCEG score recompute
  8. 2026-08-19 17:04 UTCEPSS rescore
  9. 2026-08-17 15:28 UTCEG score recompute
  10. 2026-08-17 13:47 UTCEPSS rescore
  11. 2026-08-16 17:48 UTCEG score recompute
  12. 2026-08-16 14:56 UTCEPSS rescore
  13. 2026-08-16 06:44 UTCEG score recompute
  14. 2026-08-16 02:14 UTCEPSS rescore
  15. 2026-08-15 09:05 UTCEG score recompute
  16. 2026-08-15 01:30 UTCEPSS rescore
  17. 2026-08-14 00:35 UTCEG score recompute
  18. 2026-08-13 22:00 UTCEPSS rescore
  19. 2026-08-12 16:05 UTCEG score recompute
  20. 2026-08-12 13:51 UTCEPSS rescore
  21. 2026-08-11 18:21 UTCEG score recompute
  22. 2026-08-11 07:31 UTCEG score recompute
  23. 2026-08-11 00:00 UTCEPSS rescore
  24. 2026-08-09 23:01 UTCEG score recompute
  25. 2026-08-09 13:46 UTCEPSS rescore
  26. 2026-08-09 01:21 UTCEG score recompute
  27. 2026-08-08 16:37 UTCEPSS rescore
  28. 2026-08-06 19:10 UTCEG score recompute
  29. 2026-08-06 13:47 UTCEPSS rescore
  30. 2026-08-05 21:30 UTCEG score recompute
  31. 2026-08-05 19:17 UTCEPSS rescore
  32. 2026-08-04 23:42 UTCEG score recompute
  33. 2026-08-04 15:10 UTCEPSS rescore
  34. 2026-08-04 12:52 UTCEG score recompute
  35. 2026-08-04 10:39 UTCEPSS rescore
  36. 2026-08-03 12:55 UTCEG score recompute
  37. 2026-08-03 10:36 UTCEPSS rescore
  38. 2026-08-02 04:24 UTCEG score recompute
  39. 2026-08-02 02:27 UTCEPSS rescore
  40. 2026-08-01 06:44 UTCEG score recompute
  41. 2026-08-01 04:16 UTCEPSS rescore
  42. 2026-07-30 21:39 UTCEG score recompute
  43. 2026-07-30 16:28 UTCEPSS rescore
  44. 2026-07-30 10:45 UTCEG score recompute
  45. 2026-07-30 01:30 UTCEPSS rescore
  46. 2026-07-29 02:07 UTCEG score recompute
  47. 2026-07-28 15:37 UTCEPSS rescore
  48. 2026-07-28 15:17 UTCEG score recompute▼ 0.70
  49. 2026-07-28 15:16 UTCNVD updateCVSS v3 → 7.3
  50. 2026-07-27 23:55 UTCEG score recompute
  51. 2026-07-26 15:20 UTCEG score recompute
  52. 2026-07-26 14:54 UTCEPSS rescore
  53. 2026-07-26 04:29 UTCEG score recompute
  54. 2026-07-25 14:18 UTCEPSS rescore
  55. 2026-07-24 14:18 UTCEPSS rescore
  56. 2026-07-23 14:18 UTCEPSS rescore
  57. 2026-07-23 03:20 UTCEG score recompute
  58. 2026-07-22 23:34 UTCEG score recompute
  59. 2026-07-22 14:08 UTCEPSS rescore
  60. 2026-07-21 15:25 UTCEPSS rescore
  61. 2026-07-20 20:44 UTCEG score recompute
  62. 2026-07-20 19:14 UTCEG score recompute
  63. 2026-07-20 18:41 UTCEG score recompute
  64. 2026-07-20 17:58 UTCEG score recompute
  65. 2026-07-20 17:57 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-55626?
CVE-2026-55626 is a high vulnerability published on July 20, 2026. xrdp is an open source RDP server. In versions 0.10.6 and prior, when an authenticated user session is initialized using the Xvnc backend over UNIX domain sockets, the Xvnc process is launched with insufficient authentication mechanisms. A local authenticated attacker could exploit this…
When was CVE-2026-55626 disclosed?
CVE-2026-55626 was first published in the National Vulnerability Database on July 20, 2026, with the most recent update on July 28, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-55626 actively exploited?
CVE-2026-55626 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 97.4% of all scored CVEs.
What is the CVSS score of CVE-2026-55626?
CVE-2026-55626 has a CVSS v3 base score of 7.3 (NVD).
How do I remediate CVE-2026-55626?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-55626, 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

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-55626

Explore →

Is Your Infrastructure Affected by CVE-2026-55626?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs