CVE-2026-85433

CRITICALPre-NVD 9.89.8—
EchelonGraph scoreHIGH confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-09-04. a secondary CVSS source baseline 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
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

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

MOOS essential-moos pShare through 10.0.1 fails to properly authorize PSHARE_CMD messages, allowing any publisher to reconfigure network routes and listeners at runtime. Attackers can send crafted PSHARE_CMD messages with cmd=output or cmd=input parameters to open new listeners on arbitrary addresses and redirect or duplicate bus traffic to attacker-controlled destinations.

CVSS v3
9.8
EG Score
9.8(high)
EG Risk
59(Track)
EG Risk 59/100SSVC: 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%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
47%
KEV
Not listed

Published

September 3, 2026

Last Modified

September 14, 2026

Advisory Details (5)

Auto-updated Sep 21, 2026
Upstream fix merged — awaiting tagged release. Sources: github_commit, github_pr.
generic

MOOS essential-moos through 10.0.1 pShare Unauthorized Runtime Route Reconfiguration | Advisories | VulnCheck

https://www.vulncheck.com/advisories/moos-essential-moos-through-10.0.1-pshare-unauthorized-runtime-route-reconfiguration
github_pr

pShare: make runtime route reconfiguration opt in

Upstream fix in progress (PR #20 · themoos/essential-moos, state=open)

https://github.com/themoos/essential-moos/pull/20
github_commit

commit 8e51cedcbd8d (themoos/essential-moos)

Fix landed in themoos/essential-moos commit 8e51cedcbd8d — awaiting tagged release

https://github.com/themoos/essential-moos/commit/8e51cedcbd8de9781adec2e9cce354f51750a547
generic

essential-moos/Essentials/pShare/Share.cpp at b897ea86dba8b61412dc48ac0cfb5ff34cdaf5f6 · themoos/essential-moos · GitHub

https://github.com/themoos/essential-moos/blob/b897ea86dba8b61412dc48ac0cfb5ff34cdaf5f6/Essentials/pShare/Share.cpp#L813
generic

GitHub - themoos/essential-moos: a set of useful applications that leverage the core-moos communications layer · GitHub

https://github.com/themoos/essential-moos

Vendor Advisories for CVE-2026-85433(1)

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

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 54× in last 7d / 170× 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 170 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-85433?
CVE-2026-85433 is a critical vulnerability published on September 3, 2026. MOOS essential-moos pShare through 10.0.1 fails to properly authorize PSHARECMD messages, allowing any publisher to reconfigure network routes and listeners at runtime. Attackers can send crafted PSHARECMD messages with cmd=output or cmd=input parameters to open new listeners on arbitrary addresses…
When was CVE-2026-85433 disclosed?
CVE-2026-85433 was first published in the National Vulnerability Database on September 3, 2026, with the most recent update on September 14, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-85433 actively exploited?
CVE-2026-85433 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 52.5% of all scored CVEs.
What is the CVSS score of CVE-2026-85433?
CVE-2026-85433 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2026-85433?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-85433, 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.

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