CVE-2022-26486

CRITICALNVD 9.69.6—
EchelonGraph scoreHIGH confidence

Score elevated to 9.6 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2022-03-07), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 9.6 retained for reference. Confidence: HIGH.

Triggered by: CISA KEV (actively exploited)
Sources: cisa_kev, epss, ghsa, nvd
Trending — 5 sources updated this weekExploited in the wild
9.6
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS: 2%CVSS: 9.6Exploit: NoneExposed: 0

A fix is available — apply it.

An unexpected message in the WebGPU IPC framework could lead to a use-after-free and exploitable sandbox escape. We have had reports of attacks in the wild abusing this flaw. This vulnerability affects Firefox < 97.0.2, Firefox ESR < 91.6.1, Firefox for Android < 97.3.0, Thunderbird < 91.6.2, and Focus < 97.3.0.

CVSS v3
9.6
EG Score
9.6(high)
EG Risk
—
EPSS
81.9%
KEV
⚠ Exploited

Published

December 22, 2022

Last Modified

November 4, 2025

Advisory Details (3)

Auto-updated Jun 1, 2026
⚠️ Active exploitation confirmed. Patch available. Sources: cisa.
cisa Patch Available🔴 Active Exploitation

Known Exploited Vulnerabilities Catalog | CISA

Known Exploited Vulnerabilities Catalog | CISA. Listed in CISA Known Exploited Vulnerabilities catalog.

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-26486
generic🔴 Active Exploitation

Security Vulnerabilities fixed in Firefox 97.0.2, Firefox ESR 91.6.1, Firefox for Android 97.3.0, and Focus 97.3.0 — Mozilla

https://www.mozilla.org/security/advisories/mfsa2022-09/
generic🔴 Active Exploitation

1758070 - (CVE-2022-26486) UAF in Webgpu status manager [exploited in the wild]

https://bugzilla.mozilla.org/show_bug.cgi?id=1758070

Vendor Advisories for CVE-2022-26486(10)

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
ubuntufirefox-locale-ast (97.0.2+build1-0ubuntu0.21.10.1) @ impish2026-07-21ubuntu
redhatthunderbird-0:91.7.0-2.el7_92022-03-14redhat
redhatthunderbird-0:91.7.0-2.el8_22022-03-14redhat
redhatthunderbird-0:91.7.0-2.el8_42022-03-14redhat
redhatthunderbird-0:91.7.0-2.el8_52022-03-14redhat
redhatthunderbird-0:91.7.0-2.el8_12022-03-14redhat
redhatfirefox-0:91.7.0-3.el7_92022-03-10redhat
redhatfirefox-0:91.7.0-3.el8_22022-03-10redhat
redhatfirefox-0:91.7.0-3.el8_52022-03-10redhat
redhatfirefox-0:91.7.0-3.el8_42022-03-10redhat
redhatfirefox-0:91.7.0-3.el8_12022-03-10redhat

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(1)

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

Additional Vendor Advisories

(1)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 100× in last 7d / 397× 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 714 total refreshes for this CVE.

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

Related CVEs(same vendor + same CWE)

Frequently asked(6)

What is CVE-2022-26486?
CVE-2022-26486 is a critical vulnerability published on December 22, 2022. An unexpected message in the WebGPU IPC framework could lead to a use-after-free and exploitable sandbox escape. We have had reports of attacks in the wild abusing this flaw. This vulnerability affects Firefox < 97.0.2, Firefox ESR < 91.6.1, Firefox for Android < 97.3.0, Thunderbird < 91.6.2, and…
When was CVE-2022-26486 disclosed?
CVE-2022-26486 was first published in the National Vulnerability Database on December 22, 2022, with the most recent update on November 4, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2022-26486 actively exploited?
Yes. CISA added CVE-2022-26486 to the Known Exploited Vulnerabilities catalog on March 7, 2022, affecting Mozilla Firefox. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.
What is the CVSS score of CVE-2022-26486?
CVE-2022-26486 has a CVSS v3 base score of 9.6 (NVD).
Which products are affected by CVE-2022-26486?
CVE-2022-26486 affects Mozilla Firefox. The full affected-products list, including version ranges and fixed versions, is shown in the Affected Packages section of this page.
How do I remediate CVE-2022-26486?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2022-26486, 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

Explore the affected products and dependency analysis for CVE-2022-26486

Explore →

Is Your Infrastructure Affected by CVE-2022-26486?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs