CVE-2026-42218

MEDIUMPre-NVD 5.35.3—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 5.3 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.2%, top 84% 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, secondary
5.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.3Exploit: 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. Versions 0.10.6 and prior contain a timing side-channel vulnerability in the login interface. Due to a discrepancy in response processing times, a remote attacker can infer the existence of a username on the system, leading to unauthorized information disclosure via username enumeration. This issue has been fixed in version 0.10.6.1.

CVSS v3
5.3
EG Score
5.3(medium)
EG Risk
39(Track)
EG Risk 39/100SSVC: 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
Severity53% × 45%
Exploitation0% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
16%
KEV
Not listed

Published

July 20, 2026

Last Modified

July 22, 2026

Advisory Details (2)

Auto-updated Jul 21, 2026
Patch available. Sources: github_release, github.
github Patch Available

Timing side-channel in xrdp allows username enumeration · Advisory · neutrinolabs/xrdp · GitHub

https://github.com/neutrinolabs/xrdp/security/advisories/GHSA-3wr5-fwmh-qh34
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

(2 across 2 ecosystems)
Debian:13(1)
PackageVulnerable rangeFixed inDependents
xrdp0.10.1-3.1, 0.10.1-3.1+deb13u10.10.1-3.1+deb13u2—
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(1)

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

Data Freshness Timeline

(refreshed 11× in last 7d / 46× 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 14:53 UTCEPSS rescore
  2. 2026-09-11 09:37 UTCEPSS rescore
  3. 2026-09-11 09:23 UTCEG score recompute
  4. 2026-09-10 09:34 UTCEPSS rescore
  5. 2026-09-09 11:53 UTCEG score recompute
  6. 2026-09-08 22:00 UTCEPSS rescore
  7. 2026-09-07 22:53 UTCEG score recompute
  8. 2026-09-07 16:01 UTCEPSS rescore
  9. 2026-09-06 13:47 UTCEPSS rescore
  10. 2026-09-06 11:44 UTCEG score recompute
  11. 2026-09-05 09:29 UTCEG score recompute
  12. 2026-09-04 05:06 UTCEPSS rescore
  13. 2026-09-02 14:12 UTCEPSS rescore
  14. 2026-09-01 13:54 UTCEPSS rescore
  15. 2026-08-31 01:31 UTCEG score recompute
  16. 2026-08-30 19:17 UTCEPSS rescore
  17. 2026-08-30 02:35 UTCEG score recompute
  18. 2026-08-30 01:22 UTCEPSS rescore
  19. 2026-08-28 21:41 UTCEPSS rescore
  20. 2026-08-28 01:41 UTCEG score recompute
  21. 2026-08-27 14:25 UTCEPSS rescore
  22. 2026-08-27 01:23 UTCEG score recompute
  23. 2026-08-26 14:46 UTCEPSS rescore
  24. 2026-08-26 02:26 UTCEG score recompute
  25. 2026-08-25 13:49 UTCEPSS rescore
Show 66 more
  1. 2026-08-25 03:30 UTCEG score recompute
  2. 2026-08-23 05:37 UTCEG score recompute
  3. 2026-08-23 00:19 UTCEPSS rescore
  4. 2026-08-22 06:40 UTCEG score recompute
  5. 2026-08-21 23:49 UTCEPSS rescore
  6. 2026-08-21 07:44 UTCEG score recompute
  7. 2026-08-20 22:55 UTCEPSS rescore
  8. 2026-08-20 08:47 UTCEG score recompute
  9. 2026-08-19 17:03 UTCEPSS rescore
  10. 2026-08-19 09:51 UTCEG score recompute
  11. 2026-08-18 13:48 UTCEPSS rescore
  12. 2026-08-18 10:55 UTCEG score recompute
  13. 2026-08-17 13:47 UTCEPSS rescore
  14. 2026-08-17 11:58 UTCEG score recompute
  15. 2026-08-16 14:56 UTCEPSS rescore
  16. 2026-08-16 13:02 UTCEG score recompute
  17. 2026-08-16 02:14 UTCEPSS rescore
  18. 2026-08-15 14:06 UTCEG score recompute
  19. 2026-08-15 01:30 UTCEPSS rescore
  20. 2026-08-14 15:09 UTCEG score recompute
  21. 2026-08-13 22:00 UTCEPSS rescore
  22. 2026-08-12 17:16 UTCEG score recompute
  23. 2026-08-12 13:51 UTCEPSS rescore
  24. 2026-08-11 18:20 UTCEG score recompute
  25. 2026-08-11 13:43 UTCEPSS rescore
  26. 2026-08-11 00:00 UTCEPSS rescore
  27. 2026-08-09 20:26 UTCEG score recompute
  28. 2026-08-09 13:46 UTCEPSS rescore
  29. 2026-08-08 21:30 UTCEG score recompute
  30. 2026-08-08 16:37 UTCEPSS rescore
  31. 2026-08-07 22:34 UTCEG score recompute
  32. 2026-08-06 23:38 UTCEG score recompute
  33. 2026-08-06 13:46 UTCEPSS rescore
  34. 2026-08-06 00:41 UTCEG score recompute
  35. 2026-08-05 19:17 UTCEPSS rescore
  36. 2026-08-05 01:45 UTCEG score recompute
  37. 2026-08-04 15:10 UTCEPSS rescore
  38. 2026-08-04 10:38 UTCEPSS rescore
  39. 2026-08-04 02:49 UTCEG score recompute
  40. 2026-08-03 10:36 UTCEPSS rescore
  41. 2026-08-02 04:55 UTCEG score recompute
  42. 2026-08-02 02:27 UTCEPSS rescore
  43. 2026-08-01 05:59 UTCEG score recompute
  44. 2026-08-01 04:16 UTCEPSS rescore
  45. 2026-07-31 07:00 UTCEG score recompute
  46. 2026-07-30 16:28 UTCEPSS rescore
  47. 2026-07-30 08:03 UTCEG score recompute
  48. 2026-07-30 01:30 UTCEPSS rescore
  49. 2026-07-29 07:39 UTCEG score recompute
  50. 2026-07-28 15:36 UTCEPSS rescore
  51. 2026-07-28 08:39 UTCEG score recompute
  52. 2026-07-27 14:13 UTCEPSS rescore
  53. 2026-07-27 09:43 UTCEG score recompute
  54. 2026-07-26 14:54 UTCEPSS rescore
  55. 2026-07-26 14:54 UTCEPSS rescore
  56. 2026-07-26 10:47 UTCEG score recompute
  57. 2026-07-25 14:18 UTCEPSS rescore
  58. 2026-07-24 14:17 UTCEPSS rescore
  59. 2026-07-23 14:18 UTCEPSS rescore
  60. 2026-07-23 03:11 UTCEG score recompute
  61. 2026-07-22 23:35 UTCEG score recompute
  62. 2026-07-22 14:08 UTCEPSS rescore
  63. 2026-07-21 15:24 UTCEPSS rescore
  64. 2026-07-20 18:41 UTCEG score recompute
  65. 2026-07-20 17:11 UTCEG score recompute
  66. 2026-07-20 17:09 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-42218?
CVE-2026-42218 is a medium vulnerability published on July 20, 2026. xrdp is an open source RDP server. Versions 0.10.6 and prior contain a timing side-channel vulnerability in the login interface. Due to a discrepancy in response processing times, a remote attacker can infer the existence of a username on the system, leading to unauthorized information disclosure…
When was CVE-2026-42218 disclosed?
CVE-2026-42218 was first published in the National Vulnerability Database on July 20, 2026, with the most recent update on July 22, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-42218 actively exploited?
CVE-2026-42218 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 83.6% of all scored CVEs.
What is the CVSS score of CVE-2026-42218?
CVE-2026-42218 has a CVSS v3 base score of 5.3 (NVD).
How do I remediate CVE-2026-42218?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-42218, 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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