CVE-2022-46882

CRITICALNVD 9.89.8
EchelonGraph scoreMEDIUM confidence

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

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2022-12-22. NVD baseline CVSS 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, NVD CVSS v3
Trending — 4 sources updated this week
9.8EG
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: 1.0%CVSS: 9.8Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

A use-after-free in WebGL extensions could have led to a potentially exploitable crash. This vulnerability affects Firefox < 107, Firefox ESR < 102.6, and Thunderbird < 102.6.

CVSS v3
9.8
EG Score
9.8CRITICALmedium confidence
EG Risk
59
EG Risk 59/100

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.
Exploitation1.0% × 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 total (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
1.0%
EPSS %ILE
61st
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.GitHub Security Advisory CVSS
EG Likelihood
1.0% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-22). 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: 3 days if the affected system is publicly exposed; 60 days if it is not.Each input and its source: 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 total (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)3 days if the affected system is publicly exposed; 60 days if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable yes (CISA Vulnrichment) · Technical impact total (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

December 22, 2022

Last Modified

April 15, 2025

Advisory Details (6)

Auto-updated Oct 10, 2026
Patch available.
Web page

Security Vulnerabilities fixed in Firefox 107 — Mozilla

https://www.mozilla.org/security/advisories/mfsa2022-47/
Web page

Mozilla Thunderbird: Multiple Vulnerabilities (GLSA 202305-13) — Gentoo security

https://security.gentoo.org/glsa/202305-13
Web page

Mozilla Firefox: Multiple Vulnerabilities (GLSA 202305-06) — Gentoo security

https://security.gentoo.org/glsa/202305-06
Web page

1789371 - (CVE-2022-46882) SEGV on unknown address 0xe5e5e5f5 in mozilla::ClientWebGLContext::GetExtension

https://bugzilla.mozilla.org/show_bug.cgi?id=1789371
Web page

Security Vulnerabilities fixed in Thunderbird 102.6 — Mozilla

https://www.mozilla.org/security/advisories/mfsa2022-53/
Web page

Security Vulnerabilities fixed in Firefox ESR 102.6 — Mozilla

https://www.mozilla.org/security/advisories/mfsa2022-52/

Patch Availability(17)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
ubuntuthunderbird-locale-id (1:102.7.1+build2-0ubuntu0.22.10.1) @ kinetic2026-10-23ubuntu
redhatthunderbird-0:102.6.0-2.el8_42022-12-15redhat
redhatthunderbird-0:102.6.0-2.el9_12022-12-15redhat
redhatthunderbird-0:102.6.0-2.el7_92022-12-15redhat
redhatfirefox-0:102.6.0-1.el8_72022-12-15redhat
redhatthunderbird-0:102.6.0-2.el8_12022-12-15redhat
redhatfirefox-0:102.6.0-1.el8_42022-12-15redhat
redhatfirefox-0:102.6.0-1.el9_12022-12-15redhat
redhatfirefox-0:102.6.0-1.el8_22022-12-15redhat
redhatthunderbird-0:102.6.0-2.el9_02022-12-15redhat
redhatthunderbird-0:102.6.0-2.el8_62022-12-15redhat
redhatfirefox-0:102.6.0-1.el8_62022-12-15redhat
redhatfirefox-0:102.6.0-1.el8_12022-12-15redhat
redhatfirefox-0:102.6.0-1.el9_02022-12-15redhat
redhatthunderbird-0:102.6.0-2.el8_22022-12-15redhat
redhatfirefox-0:102.6.0-1.el7_92022-12-15redhat
redhatthunderbird-0:102.6.0-2.el8_72022-12-15redhat

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

(10 across 5 ecosystems)
Debian:10(2)
PackageVulnerable rangeFix by version rangeDependents
firefox-esr102.1.0esr-1 ... 91.9.1esr-1~deb9u1 (179 versions)
  • every version up to 102.6.0esr-1~deb10u1: fixed in 102.6.0esr-1~deb10u1
—
thunderbird1:102.0.1-1 ... 1:91.9.0-1~deb9u1 (222 versions)
  • every version up to 1:102.6.0-1~deb10u1: fixed in 1:102.6.0-1~deb10u1
—
Debian:11(2)
PackageVulnerable rangeFix by version rangeDependents
firefox-esr102.1.0esr-1 ... 91.9.1esr-1~deb9u1 (77 versions)
  • every version up to 102.6.0esr-1~deb11u1: fixed in 102.6.0esr-1~deb11u1
—
thunderbird1:102.0.1-1 ... 1:91.9.0-1~deb9u1 (99 versions)
  • every version up to 1:102.6.0-1~deb11u1: fixed in 1:102.6.0-1~deb11u1
—
Debian:12(2)
PackageVulnerable rangeFix by version rangeDependents
firefox-esr—
  • every version up to 102.6.0esr-1: fixed in 102.6.0esr-1
—
thunderbird—
  • every version up to 1:102.6.0-1: fixed in 1:102.6.0-1
—
Debian:13(2)
PackageVulnerable rangeFix by version rangeDependents
firefox-esr—
  • every version up to 102.6.0esr-1: fixed in 102.6.0esr-1
—
thunderbird—
  • every version up to 1:102.6.0-1: fixed in 1:102.6.0-1
—
Debian:14(2)
PackageVulnerable rangeFix by version rangeDependents
firefox-esr—
  • every version up to 102.6.0esr-1: fixed in 102.6.0esr-1
—
thunderbird—
  • every version up to 1:102.6.0-1: fixed in 1:102.6.0-1
—

Weakness Classification(1)

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

All Vendor Advisories

(17)

Data Freshness Timeline

(refreshed 25× in last 7d / 64× 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 98 of 227 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. 2 repeat rows among the latest 100 are merged into the row they repeat. The 129 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-23 16:28 UTCEPSS rescoreEPSS 1.0% · 61st percentile
  2. 2026-10-23 12:30 UTCEG score recompute
  3. 2026-10-23 12:30 UTCVendor advisory
  4. 2026-10-23 12:30 UTCGHSA enrichmentGHSA-qh9q-rjpp-hqc3 · GitHub severity CRITICAL · GitHub CVSS 9.8
  5. 2026-10-22 16:30 UTCEPSS rescoreEPSS 1.0% · 61st percentile
  6. 2026-10-22 11:12 UTCEG score recompute
  7. 2026-10-22 11:12 UTCVendor advisory
  8. 2026-10-22 11:11 UTCGHSA enrichmentGHSA-qh9q-rjpp-hqc3 · GitHub severity CRITICAL · GitHub CVSS 9.8
  9. 2026-10-21 16:29 UTCEPSS rescoreEPSS 0.9% · 60th percentile
  10. 2026-10-21 09:52 UTCEG score recompute
  11. 2026-10-21 09:52 UTCVendor advisory
  12. 2026-10-21 09:52 UTCGHSA enrichmentGHSA-qh9q-rjpp-hqc3 · GitHub severity CRITICAL · GitHub CVSS 9.8
  13. 2026-10-20 16:29 UTCEPSS rescoreEPSS 0.9% · 60th percentile
  14. 2026-10-20 08:35 UTCEG score recompute
  15. 2026-10-20 08:35 UTCVendor advisory
  16. 2026-10-20 08:35 UTCGHSA enrichmentGHSA-qh9q-rjpp-hqc3 · GitHub severity CRITICAL · GitHub CVSS 9.8
  17. 2026-10-19 16:28 UTCEPSS rescoreEPSS 0.9% · 60th percentile
  18. 2026-10-19 07:17 UTCEG score recompute
  19. 2026-10-19 07:17 UTCVendor advisory
  20. 2026-10-19 07:17 UTCGHSA enrichmentGHSA-qh9q-rjpp-hqc3 · GitHub severity CRITICAL · GitHub CVSS 9.8
  21. 2026-10-18 16:28 UTCEPSS rescoreEPSS 0.9% · 60th percentile
  22. 2026-10-18 05:59 UTCEG score recompute
  23. 2026-10-18 05:59 UTCVendor advisory
  24. 2026-10-18 05:59 UTCGHSA enrichmentGHSA-qh9q-rjpp-hqc3 · GitHub severity CRITICAL · GitHub CVSS 9.8
  25. 2026-10-17 16:29 UTCEPSS rescoreEPSS 0.9% · 60th percentile
Show 73 more
  1. 2026-10-17 04:40 UTCEG score recompute
  2. 2026-10-17 04:40 UTCVendor advisory
  3. 2026-10-17 04:40 UTCGHSA enrichmentGHSA-qh9q-rjpp-hqc3 · GitHub severity CRITICAL · GitHub CVSS 9.8
  4. 2026-10-16 16:35 UTCEPSS rescoreEPSS 0.9% · 60th percentile
  5. 2026-10-16 03:22 UTCEG score recompute
  6. 2026-10-16 03:22 UTCVendor advisory
  7. 2026-10-16 03:22 UTCGHSA enrichmentGHSA-qh9q-rjpp-hqc3 · GitHub severity CRITICAL · GitHub CVSS 9.8
  8. 2026-10-15 16:28 UTCEPSS rescoreEPSS 0.9% · 60th percentile
  9. 2026-10-15 00:03 UTCEG score recompute
  10. 2026-10-15 00:03 UTCVendor advisory
  11. 2026-10-15 00:03 UTCGHSA enrichmentGHSA-qh9q-rjpp-hqc3 · GitHub severity CRITICAL · GitHub CVSS 9.8
  12. 2026-10-14 16:29 UTCEPSS rescoreEPSS 0.9% · 60th percentile
  13. 2026-10-13 19:13 UTCEG score recompute
  14. 2026-10-13 19:13 UTCVendor advisory
  15. 2026-10-13 19:12 UTCGHSA enrichmentGHSA-qh9q-rjpp-hqc3 · GitHub severity CRITICAL · GitHub CVSS 9.8
  16. 2026-10-13 16:29 UTCEPSS rescoreEPSS 0.9% · 60th percentile
  17. 2026-10-12 17:51 UTCEG score recompute
  18. 2026-10-12 17:51 UTCVendor advisory
  19. 2026-10-12 17:51 UTCGHSA enrichmentGHSA-qh9q-rjpp-hqc3 · GitHub severity CRITICAL · GitHub CVSS 9.8
  20. 2026-10-12 16:30 UTCEPSS rescoreEPSS 0.9% · 60th percentile
  21. 2026-10-11 22:07 UTCEG score recompute
  22. 2026-10-11 13:44 UTCEPSS rescoreEPSS 0.9% · 60th percentile
  23. 2026-10-10 19:57 UTCEPSS rescoreEPSS 0.9% · 60th percentile
  24. 2026-10-09 20:04 UTCEPSS rescoreEPSS 0.9% · 59th percentile
  25. 2026-10-08 17:05 UTCEPSS rescoreEPSS 0.9% · 59th percentile
  26. 2026-10-07 23:45 UTCEPSS rescoreEPSS 0.9% · 59th percentile
  27. 2026-10-06 15:14 UTCEPSS rescoreEPSS 0.9% · 59th percentile
  28. 2026-10-05 17:40 UTCEPSS rescoreEPSS 0.9% · 59th percentile
  29. 2026-10-04 23:19 UTCEPSS rescoreEPSS 0.9% · 59th percentile
  30. 2026-10-03 14:23 UTCEPSS rescoreEPSS 0.9% · 59th percentile
  31. 2026-10-02 16:23 UTCEPSS rescoreEPSS 0.9% · 59th percentile
  32. 2026-10-01 19:47 UTCEPSS rescoreEPSS 0.9% · 58th percentile
  33. 2026-09-30 16:10 UTCEG score recompute
  34. 2026-09-30 15:01 UTCEPSS rescoreEPSS 0.9% · 58th percentile
  35. 2026-09-29 15:16 UTCEPSS rescoreEPSS 0.9% · 58th percentile
  36. 2026-09-28 13:48 UTCEPSS rescoreEPSS 0.9% · 58th percentile
  37. 2026-09-27 13:42 UTCEPSS rescoreEPSS 0.9% · 58th percentile
  38. 2026-09-26 15:55 UTCEPSS rescoreEPSS 0.9% · 58th percentile
  39. 2026-09-26 00:22 UTCEPSS rescoreEPSS 0.9% · 58th percentile
  40. 2026-09-24 02:31 UTCOSV refresh
  41. 2026-09-23 13:45 UTCEPSS rescoreEPSS 0.9% · 58th percentile
  42. 2026-09-20 20:13 UTCEPSS rescoreEPSS 0.9% · 58th percentile
  43. 2026-09-19 15:38 UTCEPSS rescoreEPSS 0.9% · 58th percentile
  44. 2026-09-16 14:05 UTCEPSS rescoreEPSS 0.9% · 58th percentile
  45. 2026-09-16 05:10 UTCEPSS rescoreEPSS 0.9% · 58th percentile
  46. 2026-09-15 03:07 UTCEPSS rescoreEPSS 0.9% · 58th percentile
  47. 2026-09-13 16:44 UTCEPSS rescoreEPSS 0.9% · 58th percentile
  48. 2026-09-12 14:57 UTCEPSS rescoreEPSS 0.9% · 58th percentile
  49. 2026-09-11 14:50 UTCEPSS rescoreEPSS 0.9% · 58th percentile
  50. 2026-09-11 09:33 UTCEPSS rescoreEPSS 0.9% · 58th percentile
  51. 2026-09-08 21:57 UTCEPSS rescoreEPSS 0.9% · 58th percentile
  52. 2026-09-07 15:58 UTCEPSS rescoreEPSS 0.9% · 58th percentile
  53. 2026-09-06 13:45 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  54. 2026-09-05 15:25 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  55. 2026-09-04 20:24 UTCOSV refresh
  56. 2026-09-04 13:57 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  57. 2026-09-04 05:04 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  58. 2026-09-02 14:09 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  59. 2026-09-01 13:51 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  60. 2026-08-30 19:14 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  61. 2026-08-30 01:19 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  62. 2026-08-28 21:38 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  63. 2026-08-27 14:22 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  64. 2026-08-26 14:43 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  65. 2026-08-25 13:46 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  66. 2026-08-24 14:13 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  67. 2026-08-23 00:17 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  68. 2026-08-21 23:46 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  69. 2026-08-20 22:53 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  70. 2026-08-19 17:01 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  71. 2026-08-18 13:45 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  72. 2026-08-18 07:22 UTCOSV refresh
  73. 2026-08-17 13:44 UTCEPSS rescoreEPSS 0.9% · 57th percentile

Frequently asked(5)

What is CVE-2022-46882?
CVE-2022-46882 is a critical-severity vulnerability; its CVE record was published on December 22, 2022. A use-after-free in WebGL extensions could have led to a potentially exploitable crash. This vulnerability affects Firefox < 107, Firefox ESR < 102.6, and Thunderbird < 102.6.
When was the CVE record for CVE-2022-46882 published?
The CVE record for CVE-2022-46882 was published on December 22, 2022. 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 April 15, 2025; the record at its source may have been updated since.
Is CVE-2022-46882 actively exploited?
CVE-2022-46882 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1.0% probability of exploitation in the next 30 days (61st percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2022-46882?
CVE-2022-46882 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2022-46882?
A fix for CVE-2022-46882 is available: update to the fixed version the vendor names in its advisory.

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