CVE-2026-92961

HIGHPre-NVD 7.57.5
EchelonGraph scoreMEDIUM confidence

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

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-09-17. A secondary CVSS source baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, a secondary CVSS source
Trending — Patch released this week

Also known asEUVD-2026-81611 (ENISA EUVD) · GHSA-3m4j-9x2m-pq7h (GitHub Security Advisories)Source: ENISA EUVD

7.5EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
  • 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.

vm2 before 3.11.6 fails to enforce bufferAllocLimit on ArrayBuffer, SharedArrayBuffer, and TypedArray constructors, allowing attackers to allocate arbitrary host memory. Attackers can bypass the buffer allocation cap by using these V8 intrinsics to exhaust host process memory and trigger out-of-memory conditions.

CVSS v3
7.5
EG Score
7.5HIGHmedium confidence
EG Risk
49
EG Risk 49/100

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)
Severity75% × 45%
Impact severity (EG Severity): CVSS 7.5 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation0.5% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
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 none (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: 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
45th
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 (7.5): severity, escalated by confirmed exploitation. This CVE's 7.5 is its impact severity (EG Severity), not escalated.

EG Severity
7.5 HIGHCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.5% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-29). 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.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).

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). 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.

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

September 17, 2026

Last Modified

September 21, 2026

Advisory Details (2)

Auto-updated Sep 17, 2026
Patch available. Sources: github.
Web page

vm2 before 3.11.6 Memory Exhaustion DoS via bufferAllocLimit Bypass | Advisories | VulnCheck

https://www.vulncheck.com/advisories/vm2-before-3.11.6-memory-exhaustion-dos-via-bufferalloclimit-bypass
GitHub advisoryMentions a patch (unverified)

Memory Exhaustion DoS via bufferAllocLimit Bypass · Advisory · patriksimek/vm2 · GitHub

https://github.com/patriksimek/vm2/security/advisories/GHSA-v836-6xw4-9cx3

Patch Availability(6)

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
vm2—
  • every version up to 3.11.6: fixed in 3.11.6
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 10× in last 7d / 89× 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 it from the CNA feed. 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). Most recent first.

Showing the most recent 100 of 165 refreshes 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 65 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-01 16:36 UTCEPSS rescoreEPSS 0.5% · 45th percentile
  2. 2026-10-31 16:33 UTCEPSS rescoreEPSS 0.5% · 45th percentile
  3. 2026-10-30 16:35 UTCEPSS rescoreEPSS 0.5% · 45th percentile
  4. 2026-10-30 07:09 UTCEG score recompute
  5. 2026-10-30 07:09 UTCVendor advisory
  6. 2026-10-30 07:09 UTCGHSA enrichmentGHSA-3m4j-9x2m-pq7h · GitHub severity HIGH · GitHub CVSS 7.5
  7. 2026-10-29 16:34 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  8. 2026-10-28 16:33 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  9. 2026-10-27 16:33 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  10. 2026-10-26 16:33 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  11. 2026-10-25 16:34 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  12. 2026-10-25 13:50 UTCEG score recompute
  13. 2026-10-24 16:34 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  14. 2026-10-23 23:54 UTCEG score recompute
  15. 2026-10-23 23:54 UTCVendor advisory
  16. 2026-10-23 23:54 UTCGHSA enrichmentGHSA-3m4j-9x2m-pq7h · GitHub severity HIGH · GitHub CVSS 7.5
  17. 2026-10-23 16:33 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  18. 2026-10-22 16:35 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  19. 2026-10-21 16:34 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  20. 2026-10-20 16:34 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  21. 2026-10-19 16:33 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  22. 2026-10-18 16:33 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  23. 2026-10-18 02:59 UTCEG score recompute
  24. 2026-10-17 16:35 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  25. 2026-10-17 15:35 UTCEG score recompute
Show 75 more
  1. 2026-10-17 15:35 UTCVendor advisory
  2. 2026-10-17 15:34 UTCGHSA enrichmentGHSA-3m4j-9x2m-pq7h · GitHub severity HIGH · GitHub CVSS 7.5
  3. 2026-10-16 16:45 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  4. 2026-10-15 16:33 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  5. 2026-10-14 16:34 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  6. 2026-10-13 16:35 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  7. 2026-10-13 04:30 UTCEG score recompute
  8. 2026-10-13 04:30 UTCVendor advisory
  9. 2026-10-13 04:30 UTCGHSA enrichmentGHSA-3m4j-9x2m-pq7h · GitHub severity HIGH · GitHub CVSS 7.5
  10. 2026-10-12 16:35 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  11. 2026-10-12 14:44 UTCEG score recompute
  12. 2026-10-11 19:12 UTCEG score recompute
  13. 2026-10-11 18:39 UTCVendor advisory
  14. 2026-10-11 18:39 UTCGHSA enrichmentGHSA-3m4j-9x2m-pq7h · GitHub severity HIGH · GitHub CVSS 7.5
  15. 2026-10-11 16:29 UTCEG score recompute
  16. 2026-10-11 13:50 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  17. 2026-10-11 13:43 UTCEG score recompute
  18. 2026-10-11 06:34 UTCEG score recompute
  19. 2026-10-11 06:34 UTCVendor advisory
  20. 2026-10-11 06:34 UTCGHSA enrichmentGHSA-3m4j-9x2m-pq7h · GitHub severity HIGH · GitHub CVSS 7.5
  21. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  22. 2026-10-10 18:58 UTCVendor advisory
  23. 2026-10-10 18:58 UTCGHSA enrichmentGHSA-3m4j-9x2m-pq7h · GitHub severity HIGH · GitHub CVSS 7.5
  24. 2026-10-10 07:25 UTCEG score recompute
  25. 2026-10-10 07:25 UTCVendor advisory
  26. 2026-10-10 07:25 UTCGHSA enrichmentGHSA-3m4j-9x2m-pq7h · GitHub severity HIGH · GitHub CVSS 7.5
  27. 2026-10-09 20:08 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  28. 2026-10-09 19:37 UTCVendor advisory
  29. 2026-10-09 19:36 UTCGHSA enrichmentGHSA-3m4j-9x2m-pq7h · GitHub severity HIGH · GitHub CVSS 7.5
  30. 2026-10-09 08:02 UTCVendor advisory
  31. 2026-10-09 08:02 UTCGHSA enrichmentGHSA-3m4j-9x2m-pq7h · GitHub severity HIGH · GitHub CVSS 7.5
  32. 2026-10-08 20:30 UTCEG score recompute
  33. 2026-10-08 20:30 UTCVendor advisory
  34. 2026-10-08 20:30 UTCGHSA enrichmentGHSA-3m4j-9x2m-pq7h · GitHub severity HIGH · GitHub CVSS 7.5
  35. 2026-10-08 17:14 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  36. 2026-10-08 07:31 UTCEG score recompute
  37. 2026-10-08 07:31 UTCVendor advisory
  38. 2026-10-08 07:31 UTCGHSA enrichmentGHSA-3m4j-9x2m-pq7h · GitHub severity HIGH · GitHub CVSS 7.5
  39. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  40. 2026-10-07 20:00 UTCVendor advisory
  41. 2026-10-07 20:00 UTCGHSA enrichmentGHSA-3m4j-9x2m-pq7h · GitHub severity HIGH · GitHub CVSS 7.5
  42. 2026-10-07 08:28 UTCVendor advisory
  43. 2026-10-07 08:28 UTCGHSA enrichmentGHSA-3m4j-9x2m-pq7h · GitHub severity HIGH · GitHub CVSS 7.5
  44. 2026-10-06 20:53 UTCEG score recompute
  45. 2026-10-06 20:53 UTCVendor advisory
  46. 2026-10-06 20:52 UTCGHSA enrichmentGHSA-3m4j-9x2m-pq7h · GitHub severity HIGH · GitHub CVSS 7.5
  47. 2026-10-06 15:19 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  48. 2026-10-06 09:17 UTCVendor advisory
  49. 2026-10-06 09:17 UTCGHSA enrichmentGHSA-3m4j-9x2m-pq7h · GitHub severity HIGH · GitHub CVSS 7.5
  50. 2026-10-05 21:46 UTCEG score recompute
  51. 2026-10-05 21:46 UTCVendor advisory
  52. 2026-10-05 21:46 UTCGHSA enrichmentGHSA-3m4j-9x2m-pq7h · GitHub severity HIGH · GitHub CVSS 7.5
  53. 2026-10-05 17:44 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  54. 2026-10-05 09:57 UTCEG score recompute
  55. 2026-10-05 09:57 UTCVendor advisory
  56. 2026-10-05 09:57 UTCGHSA enrichmentGHSA-3m4j-9x2m-pq7h · GitHub severity HIGH · GitHub CVSS 7.5
  57. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  58. 2026-10-04 22:26 UTCVendor advisory
  59. 2026-10-04 22:26 UTCGHSA enrichmentGHSA-3m4j-9x2m-pq7h · GitHub severity HIGH · GitHub CVSS 7.5
  60. 2026-10-04 10:54 UTCVendor advisory
  61. 2026-10-04 10:54 UTCGHSA enrichmentGHSA-3m4j-9x2m-pq7h · GitHub severity HIGH · GitHub CVSS 7.5
  62. 2026-10-03 23:23 UTCEG score recompute
  63. 2026-10-03 23:23 UTCVendor advisory
  64. 2026-10-03 23:23 UTCGHSA enrichmentGHSA-3m4j-9x2m-pq7h · GitHub severity HIGH · GitHub CVSS 7.5
  65. 2026-10-03 11:52 UTCVendor advisory
  66. 2026-10-03 11:52 UTCGHSA enrichmentGHSA-3m4j-9x2m-pq7h · GitHub severity HIGH · GitHub CVSS 7.5
  67. 2026-10-02 23:58 UTCEG score recompute
  68. 2026-10-02 23:58 UTCVendor advisory
  69. 2026-10-02 23:58 UTCGHSA enrichmentGHSA-3m4j-9x2m-pq7h · GitHub severity HIGH · GitHub CVSS 7.5
  70. 2026-10-02 12:19 UTCVendor advisory
  71. 2026-10-02 12:19 UTCGHSA enrichmentGHSA-3m4j-9x2m-pq7h · GitHub severity HIGH · GitHub CVSS 7.5
  72. 2026-10-02 00:21 UTCEG score recompute
  73. 2026-10-02 00:21 UTCVendor advisory
  74. 2026-10-02 00:21 UTCGHSA enrichmentGHSA-3m4j-9x2m-pq7h · GitHub severity HIGH · GitHub CVSS 7.5
  75. 2026-10-01 19:51 UTCEPSS rescoreEPSS 0.5% · 42nd percentile

Frequently asked(5)

What is CVE-2026-92961?
CVE-2026-92961 is a high-severity vulnerability; its CVE record was published on September 17, 2026. vm2 before 3.11.6 fails to enforce bufferAllocLimit on ArrayBuffer, SharedArrayBuffer, and TypedArray constructors, allowing attackers to allocate arbitrary host memory. Attackers can bypass the buffer allocation cap by using these V8 intrinsics to exhaust host process memory and trigger…
When was CVE-2026-92961 made public?
CVE-2026-92961 was made public on August 14, 2026: that is the date its CVE record's CNA, VulnCheck, gives for when the vulnerability was made public. The CVE record itself was published on September 17, 2026. EchelonGraph's copy of the record carries a last-modified date of September 21, 2026; the record at its source may have been updated since.
Is CVE-2026-92961 actively exploited?
CVE-2026-92961 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.5% probability of exploitation in the next 30 days (45th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-92961?
CVE-2026-92961 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-2026-92961?
A fix for CVE-2026-92961 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-92961 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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