CVE-2025-11287

CRITICALNVD 9.89.8
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to NVD's CVSS score.

This critical-severity CVE scores 9.8 under NVD CVSS v3. EPSS exploit probability: 0.6% (47th percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.

Triggered by: Headline CVSS from NVD CVSS v3
Sources: EPSS, NVD CVSS v3
Elevated

Also known asEUVD-2025-32242 (ENISA EUVD) · GHSA-v7c4-33vf-cqqq (GitHub Security Advisories)Source: ENISA EUVD

9.8EG
EchelonGraph verdictPlan mitigationNo fix is confirmed yet: check the vendor's advisory for a fixed release; until one is applied, restrict network exposure of the affected system or apply the vendor's mitigation on your normal schedule at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
  • CISA's Vulnrichment rates exploitation as PoC; EchelonGraph holds no exploit-code reference for it
CISA-KEV: Not listedEPSS PROB: 0.6%CVSS: 9.8Exploit: No code on recordExposed services: Not assessed

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

The CVE record's description, written by its CNA (VulDB), states the affected versions: "A vulnerability was identified in samanhappy MCPHub up to 0.9.10." No release containing a fix is confirmed on record.

A vulnerability was identified in samanhappy MCPHub up to 0.9.10. This vulnerability affects the function handleSseConnectionfunction of the file src/services/sseService.ts. Such manipulation leads to improper authentication. The attack may be launched remotely. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure but did not respond in any way.

CVSS v3
9.8
EG Score
9.8CRITICALmedium confidence
EG Risk
75
EG Risk 75/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity98% × 45%
Impact severity (EG Severity): CVSS 9.8 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation40% × 40%
EchelonGraph's fixed weight for EG-KEV Tier 3 (Elevated): a constant, not a probability.
Automatability100% × 15%
CISA's SSVC Automatable value: yes (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Attend at high (mission-essential systems).
Exploitation public PoC (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: No fix is confirmed yet. Check the vendor's advisory for a fixed release; until one is applied, restrict network exposure of the affected system or apply the vendor's mitigation on your normal schedule at low or medium mission impact and sooner than that at high.
EPSS PROB
0.6%
EPSS %ILE
47th
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (9.8): severity, escalated by confirmed exploitation. This CVE's 9.8 is its impact severity (EG Severity), not escalated.

EG Severity
9.8 CRITICALCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.NVD CVSS v3 · CVSS v3.0 or v3.1
EG Likelihood
0.6% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-11-12). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Track at medium mission impactTrack at low or medium mission impact; Attend at high (mission-essential systems).CISA BOD 26-04: 14 days if the affected system is publicly exposed; 60 days if it is not.No released fix is confirmed on this page, but CISA's timeline does not wait for a fix's release: it starts when an agency identifies the flaw on an asset and updates the CDM Agency and Federal Dashboard, and the directive counts patching, decommissioning the system or another action as remediation. Until a fixed release is applied, mitigate as this page's verdict says.Each input and its source, and whom BOD 26-04 binds: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Attend at high (mission-essential systems).

No fix is confirmed yet. Check the vendor's advisory for a fixed release; until one is applied, restrict network exposure of the affected system or apply the vendor's mitigation on your normal schedule at low or medium mission impact and sooner than that at high.

Exploitation public PoC (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; 60 days if it is not.

No released fix is confirmed on this page, but CISA's timeline does not wait for a fix's release: it starts when an agency identifies the flaw on an asset and updates the CDM Agency and Federal Dashboard, and the directive counts patching, decommissioning the system or another action as remediation. Until a fixed release is applied, mitigate as this page's verdict says.

The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

October 5, 2025

Last Modified

October 9, 2026

Advisory Details (1)

Auto-updated Nov 8, 2026
No fix on record yet.
Web page

58ead8e7e08bfb029 · Issue #8 · August829/YU1 · GitHub

https://github.com/August829/YU1/issues/8

Vendor Advisories for CVE-2025-11287(1)

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
npm@samanhappy/mcphub—ghsa

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

(1 across 1 ecosystem)
npm(1)
PackageVulnerable rangeFix by version rangeDependents
@samanhappy/mcphub—
  • every version through 0.9.10: no fix on record
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 14× in last 7d / 61× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed its CVE.org record (CNA or CISA ADP). An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). "EchelonGraph re-scored" is our own recompute of this CVE's score, not an update from a source, and is not counted in the refreshes above. Most recent first.

Showing the most recent 100 of 309 rows on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. None are among the latest 100 rows. The 209 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-13 16:48 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  2. 2026-11-12 23:26 UTCEchelonGraph re-scored
  3. 2026-11-12 23:26 UTCGHSA enrichmentGHSA-v7c4-33vf-cqqq · GitHub severity MODERATE
  4. 2026-11-12 16:31 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  5. 2026-11-12 00:02 UTCEchelonGraph re-scored
  6. 2026-11-12 00:02 UTCGHSA enrichmentGHSA-v7c4-33vf-cqqq · GitHub severity MODERATE
  7. 2026-11-11 16:35 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  8. 2026-11-11 00:39 UTCEchelonGraph re-scored
  9. 2026-11-11 00:39 UTCGHSA enrichmentGHSA-v7c4-33vf-cqqq · GitHub severity MODERATE
  10. 2026-11-10 16:39 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  11. 2026-11-10 01:16 UTCEchelonGraph re-scored
  12. 2026-11-10 01:16 UTCGHSA enrichmentGHSA-v7c4-33vf-cqqq · GitHub severity MODERATE
  13. 2026-11-09 16:32 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  14. 2026-11-09 01:53 UTCEchelonGraph re-scored
  15. 2026-11-09 01:53 UTCGHSA enrichmentGHSA-v7c4-33vf-cqqq · GitHub severity MODERATE
  16. 2026-11-08 16:36 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  17. 2026-11-08 02:30 UTCEchelonGraph re-scored
  18. 2026-11-08 02:30 UTCGHSA enrichmentGHSA-v7c4-33vf-cqqq · GitHub severity MODERATE
  19. 2026-11-07 16:36 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  20. 2026-11-07 03:05 UTCEchelonGraph re-scored
  21. 2026-11-07 03:05 UTCGHSA enrichmentGHSA-v7c4-33vf-cqqq · GitHub severity MODERATE
  22. 2026-11-06 16:33 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  23. 2026-11-06 03:42 UTCEchelonGraph re-scored
  24. 2026-11-06 03:42 UTCGHSA enrichmentGHSA-v7c4-33vf-cqqq · GitHub severity MODERATE
  25. 2026-11-05 16:34 UTCEPSS rescoreEPSS 0.6% · 46th percentile
Show 75 more
  1. 2026-11-05 07:25 UTCOSV refresh
  2. 2026-11-05 04:19 UTCEchelonGraph re-scored
  3. 2026-11-05 04:19 UTCGHSA enrichmentGHSA-v7c4-33vf-cqqq · GitHub severity MODERATE
  4. 2026-11-04 16:32 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  5. 2026-11-04 04:49 UTCEchelonGraph re-scored
  6. 2026-11-04 04:49 UTCGHSA enrichmentGHSA-v7c4-33vf-cqqq · GitHub severity MODERATE
  7. 2026-11-03 16:43 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  8. 2026-11-03 05:26 UTCEchelonGraph re-scored
  9. 2026-11-03 05:26 UTCGHSA enrichmentGHSA-v7c4-33vf-cqqq · GitHub severity MODERATE
  10. 2026-11-02 16:41 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  11. 2026-11-02 06:02 UTCEchelonGraph re-scored
  12. 2026-11-02 06:02 UTCGHSA enrichmentGHSA-v7c4-33vf-cqqq · GitHub severity MODERATE
  13. 2026-11-01 16:32 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  14. 2026-11-01 06:39 UTCEchelonGraph re-scored
  15. 2026-11-01 06:39 UTCGHSA enrichmentGHSA-v7c4-33vf-cqqq
  16. 2026-10-31 16:30 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  17. 2026-10-31 07:15 UTCEchelonGraph re-scored
  18. 2026-10-31 07:15 UTCGHSA enrichmentGHSA-v7c4-33vf-cqqq
  19. 2026-10-30 16:32 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  20. 2026-10-30 07:52 UTCEchelonGraph re-scored
  21. 2026-10-30 07:52 UTCGHSA enrichmentGHSA-v7c4-33vf-cqqq
  22. 2026-10-29 16:31 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  23. 2026-10-29 08:29 UTCEchelonGraph re-scored
  24. 2026-10-29 08:28 UTCGHSA enrichmentGHSA-v7c4-33vf-cqqq
  25. 2026-10-28 16:30 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  26. 2026-10-28 09:02 UTCEchelonGraph re-scored
  27. 2026-10-28 09:02 UTCGHSA enrichmentGHSA-v7c4-33vf-cqqq
  28. 2026-10-27 16:30 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  29. 2026-10-27 09:03 UTCEchelonGraph re-scored
  30. 2026-10-27 09:03 UTCGHSA enrichmentGHSA-v7c4-33vf-cqqq
  31. 2026-10-26 16:29 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  32. 2026-10-26 08:32 UTCGHSA enrichmentGHSA-v7c4-33vf-cqqq
  33. 2026-10-25 16:48 UTCEchelonGraph re-scored
  34. 2026-10-25 16:30 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  35. 2026-10-25 09:08 UTCEchelonGraph re-scored
  36. 2026-10-25 09:08 UTCGHSA enrichmentGHSA-v7c4-33vf-cqqq
  37. 2026-10-24 16:30 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  38. 2026-10-24 09:45 UTCEchelonGraph re-scored
  39. 2026-10-24 09:44 UTCGHSA enrichmentGHSA-v7c4-33vf-cqqq
  40. 2026-10-23 16:30 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  41. 2026-10-23 10:20 UTCEchelonGraph re-scored
  42. 2026-10-23 10:20 UTCGHSA enrichmentGHSA-v7c4-33vf-cqqq
  43. 2026-10-22 16:32 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  44. 2026-10-22 10:51 UTCEchelonGraph re-scored
  45. 2026-10-22 10:51 UTCGHSA enrichmentGHSA-v7c4-33vf-cqqq
  46. 2026-10-21 16:30 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  47. 2026-10-21 11:27 UTCEchelonGraph re-scored
  48. 2026-10-21 11:26 UTCGHSA enrichmentGHSA-v7c4-33vf-cqqq
  49. 2026-10-20 16:31 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  50. 2026-10-20 12:02 UTCEchelonGraph re-scored
  51. 2026-10-20 12:02 UTCGHSA enrichmentGHSA-v7c4-33vf-cqqq
  52. 2026-10-19 16:30 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  53. 2026-10-19 12:36 UTCEchelonGraph re-scored
  54. 2026-10-19 12:36 UTCGHSA enrichmentGHSA-v7c4-33vf-cqqq
  55. 2026-10-18 16:30 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  56. 2026-10-18 10:55 UTCGHSA enrichmentGHSA-v7c4-33vf-cqqq
  57. 2026-10-18 05:52 UTCEchelonGraph re-scored
  58. 2026-10-17 16:32 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  59. 2026-10-17 07:56 UTCEchelonGraph re-scored
  60. 2026-10-17 07:56 UTCGHSA enrichmentGHSA-v7c4-33vf-cqqq
  61. 2026-10-16 16:37 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  62. 2026-10-16 08:30 UTCEchelonGraph re-scored
  63. 2026-10-16 08:30 UTCGHSA enrichmentGHSA-v7c4-33vf-cqqq
  64. 2026-10-15 16:30 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  65. 2026-10-15 07:38 UTCEchelonGraph re-scored
  66. 2026-10-15 07:38 UTCGHSA enrichmentGHSA-v7c4-33vf-cqqq
  67. 2026-10-14 16:30 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  68. 2026-10-14 03:35 UTCEchelonGraph re-scored
  69. 2026-10-14 03:35 UTCGHSA enrichmentGHSA-v7c4-33vf-cqqq
  70. 2026-10-13 16:31 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  71. 2026-10-12 23:33 UTCGHSA enrichmentGHSA-v7c4-33vf-cqqq
  72. 2026-10-12 17:26 UTCEchelonGraph re-scored
  73. 2026-10-12 16:32 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  74. 2026-10-12 12:36 UTCGHSA enrichmentGHSA-v7c4-33vf-cqqq
  75. 2026-10-11 20:56 UTCEchelonGraph re-scored

Frequently asked(5)

What is CVE-2025-11287?
CVE-2025-11287 is a critical-severity vulnerability; its CVE record was published on October 5, 2025. A vulnerability was identified in samanhappy MCPHub up to 0.9.10. This vulnerability affects the function handleSseConnectionfunction of the file src/services/sseService.ts. Such manipulation leads to improper authentication. The attack may be launched remotely. The exploit is publicly available…
When was the CVE record for CVE-2025-11287 published?
The CVE record for CVE-2025-11287 was published on October 5, 2025. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of October 9, 2026; the record at its source may have been updated since.
Is CVE-2025-11287 actively exploited?
CVE-2025-11287 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.6% probability of exploitation in the next 30 days (47th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2025-11287?
CVE-2025-11287 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2025-11287?
No fix for CVE-2025-11287 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix. The CVE record's description, written by its CNA (VulDB), states the affected versions: "A vulnerability was identified in samanhappy MCPHub up to 0.9.10." No release containing a fix is confirmed on record. The vendor advisories EchelonGraph has for CVE-2025-11287 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2025-11287

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