CVE-2026-18358

HIGHPre-NVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-07-31. A secondary CVSS source baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
7.5EG
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: 7.5Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

A flaw was found in gnome-remote-desktop as shipped in Red Hat Enterprise Linux. When the daemon is running in system mode with RDP enabled, the incoming connection handler bypasses the connection throttler, allowing an unauthenticated remote attacker to open many parallel pre-authentication connections to the RDP listener. This can accumulate accepted sockets and pending routing-token operations until timeout, exhausting resources and preventing legitimate users from establishing RDP sessions. This issue does not affect the upstream version.

CVSS v3
7.5
EG Score
7.5HIGHmedium confidence
EG Risk
49
EG Risk 49/100CISA 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
Severity75% × 45%
Exploitation1% × 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
42nd
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

July 31, 2026

Last Modified

August 13, 2026

Advisory Details (2)

Auto-updated Jul 31, 2026
Patch available. Sources: redhat.
redhat

2462876 – (CVE-2026-18358) CVE-2026-18358 gnome-remote-desktop: gnome-remote-desktop system-mode RDP server missing connection throttling allows unauthenticated denial of service

https://bugzilla.redhat.com/show_bug.cgi?id=2462876
redhat Patch Available

cve-details

https://access.redhat.com/security/cve/CVE-2026-18358

Vendor Advisories for CVE-2026-18358(2)

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

Patch Availability(1)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
redhatgnome-remote-desktop-0:49.3-4.el10_22026-08-13redhat

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 rangeFix by version rangeDependents
gnome-remote-desktop0.1.9-5 ... 50~beta-1 (84 versions)
  • every version on: no fix on record
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
gnome-remote-desktop43.3-1 ... 50~beta-1 (58 versions)
  • every version on: no fix on record
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
gnome-remote-desktop48.1-4 ... 50~beta-1 (15 versions)
  • every version on: no fix on record
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
gnome-remote-desktop48.1-4 ... 50~beta-1 (15 versions)
  • every version on: no fix on record
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 23× in last 7d / 115× 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 284 total refreshes for this CVE.

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

Related CVEs(same product + same CWE)

Same product

2 shown

Debian:11:gnome-remote-desktop

Frequently asked(5)

What is CVE-2026-18358?
CVE-2026-18358 is a high vulnerability published on July 31, 2026. A flaw was found in gnome-remote-desktop as shipped in Red Hat Enterprise Linux. When the daemon is running in system mode with RDP enabled, the incoming connection handler bypasses the connection throttler, allowing an unauthenticated remote attacker to open many parallel pre-authentication…
When was CVE-2026-18358 disclosed?
CVE-2026-18358 was first published on July 31, 2026, with the most recent update on August 13, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-18358 actively exploited?
CVE-2026-18358 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.5% probability of exploitation in the next 30 days (42nd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-18358?
CVE-2026-18358 has a CVSS base score of 7.5 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-18358?
A fix for CVE-2026-18358 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-18358 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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