CVE-2026-8092

HIGHPre-NVD 8.18.1—
EchelonGraph scoreMEDIUM confidence

Score 8.1 from GitHub Security Advisory (severity: HIGH) published 2026-05-07. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 8.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
8.1
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 8.1Exploit: NoneExposed: 0

A fix is available — apply it.

Memory safety bugs present in Firefox ESR 115.35.1, Firefox ESR 140.10.1 and Firefox 150.0.1. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 150.0.2, Firefox ESR 140.10.2, Firefox ESR 115.35.2, Thunderbird 150.0.2, and Thunderbird 140.10.2.

CVSS v3
8.1
EG Score
8.1(medium)
EG Risk
37(Track)
EG Risk 37/100SSVC: 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
Severity81% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS
30.9%
KEV
Not listed

Published

May 7, 2026

Last Modified

July 15, 2026

Advisory Details (6)

Auto-updated May 11, 2026
No patch confirmed yet.
generic

Security Vulnerabilities fixed in Thunderbird 140.10.2 — Mozilla

https://www.mozilla.org/security/advisories/mfsa2026-44/
generic

Security Vulnerabilities fixed in Thunderbird 150.0.2 — Mozilla

https://www.mozilla.org/security/advisories/mfsa2026-43/
generic

Security Vulnerabilities fixed in Firefox ESR 115.35.2 — Mozilla

https://www.mozilla.org/security/advisories/mfsa2026-42/
generic

Security Vulnerabilities fixed in Firefox ESR 140.10.2 — Mozilla

https://www.mozilla.org/security/advisories/mfsa2026-41/
generic

Security Vulnerabilities fixed in Firefox 150.0.2 — Mozilla

https://www.mozilla.org/security/advisories/mfsa2026-40/
generic

Client Challenge

https://bugzilla.mozilla.org/buglist.cgi?bug_id=1806249%2C2021977%2C2022576%2C2022722%2C2024439%2C2027883%2C2029463%2C2030323%2C2032042%2C2032043%2C2033270%2C2033637%2C2034422%2C2034496%2C2035879%2C2036516

Vendor Advisories for CVE-2026-8092(12)

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

Patch Availability(11)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatfirefox-0:140.10.2-1.el8_62026-06-10redhat
redhatfirefox-0:140.10.2-1.el7_92026-06-10redhat
redhatfirefox-0:140.10.2-1.el8_82026-06-09redhat
redhatfirefox-0:140.10.2-1.el9_62026-06-08redhat
redhatfirefox-0:140.10.2-1.el8_42026-06-08redhat
redhatfirefox-0:140.10.2-1.el9_22026-06-08redhat
redhatfirefox-0:140.10.2-1.el9_42026-06-08redhat
redhatfirefox-0:140.10.2-1.el10_02026-06-08redhat
redhatfirefox-0:140.10.2-1.el9_82026-05-26redhat
redhatfirefox-0:140.10.2-1.el8_102026-05-26redhat
redhatfirefox-0:140.10.2-1.el10_22026-05-19redhat

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.

Weakness Classification(3)

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

Data Freshness Timeline

(refreshed 9× in last 7d / 40× 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 133 total refreshes for this CVE.

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

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-8092?
CVE-2026-8092 is a high vulnerability published on May 7, 2026. Memory safety bugs present in Firefox ESR 115.35.1, Firefox ESR 140.10.1 and Firefox 150.0.1. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox…
When was CVE-2026-8092 disclosed?
CVE-2026-8092 was first published in the National Vulnerability Database on May 7, 2026, with the most recent update on July 15, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-8092 actively exploited?
CVE-2026-8092 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 30.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-8092?
CVE-2026-8092 has a CVSS v3.1 base score of 8.1 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-8092?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-8092, 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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