CVE-2026-8093

HIGHPre-NVD 8.17.5▼
EchelonGraph scoreMEDIUM confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-05-07. NVD baseline CVSS 8.1; sources differ by 0.6.

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

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

Memory safety bugs present in 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 and Thunderbird 150.0.2.

CVSS v3
8.1
EG Score
7.5(medium)
EPSS
24.4%
KEV
Not listed

Published

May 7, 2026

Last Modified

July 15, 2026

Advisory Details (2)

Auto-updated May 7, 2026
No patch confirmed yet.
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=1981270%2C2027154%2C2028332%2C2029327%2C2029428%2C2029894%2C2032189%2C2034837%2C2035968%2C2036256

Vendor Advisories for CVE-2026-8093(1)

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

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 7× in last 7d / 41× 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 123 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-8093?
CVE-2026-8093 is a high vulnerability published on May 7, 2026. Memory safety bugs present in 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 and Thunderbird 150.0.2.
When was CVE-2026-8093 disclosed?
CVE-2026-8093 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-2026-8093 actively exploited?
CVE-2026-8093 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 24.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-8093?
CVE-2026-8093 has a CVSS v3.1 base score of 8.1 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 7.5.
How do I remediate CVE-2026-8093?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-8093, 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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