CVE-2023-28162

HIGHNVD 8.88.8—
EchelonGraph scoreMEDIUM confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2023-06-02. NVD baseline CVSS 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Elevated
8.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 1%CVSS: 8.8Exploit: NoneExposed: 0

A fix is available — apply it.

While implementing AudioWorklets, some code may have casted one type to another, invalid, dynamic type. This could have led to a potentially exploitable crash. This vulnerability affects Firefox < 111, Firefox ESR < 102.9, and Thunderbird < 102.9.

CVSS v3
8.8
EG Score
8.8(medium)
EG Risk
56(Track*)
EG Risk 56/100SSVC: 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
Severity88% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Watch closely — could escalate to Attend.
EPSS
49.4%
KEV
Not listed

Published

June 2, 2023

Last Modified

January 9, 2025

References (9)

Patch Availability(18)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntufirefox-locale-ast (111.0+build2-0ubuntu0.20.04.1) @ focal2026-05-25ubuntu
ubuntuthunderbird-locale-id (1:102.9.0+build1-0ubuntu0.18.04.1) @ bionic2026-05-25ubuntu
redhatfirefox-0:102.9.0-4.el8_12023-03-27redhat
redhatthunderbird-0:102.9.0-2.el8_42023-03-27redhat
redhatfirefox-0:102.9.0-4.el8_42023-03-23redhat
redhatfirefox-0:102.9.0-4.el8_22023-03-23redhat
redhatthunderbird-0:102.9.0-2.el8_12023-03-23redhat
redhatthunderbird-0:102.9.0-2.el8_22023-03-23redhat
redhatthunderbird-0:102.9.0-1.el7_92023-03-22redhat
redhatthunderbird-0:102.9.0-1.el8_72023-03-22redhat
redhatthunderbird-0:102.9.0-1.el8_62023-03-22redhat
redhatthunderbird-0:102.9.0-1.el9_12023-03-22redhat
redhatthunderbird-0:102.9.0-1.el9_02023-03-22redhat
redhatfirefox-0:102.9.0-3.el9_02023-03-21redhat
redhatfirefox-0:102.9.0-3.el8_62023-03-21redhat
redhatfirefox-0:102.9.0-3.el8_72023-03-20redhat
redhatfirefox-0:102.9.0-3.el9_12023-03-20redhat
redhatfirefox-0:102.9.0-3.el7_92023-03-20redhat

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(2)

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

All Vendor Advisories

(18)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 14× in last 7d / 50× 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 108 total refreshes for this CVE.

  1. 2026-07-23 02:20 UTCEG score recompute
  2. 2026-07-22 23:08 UTCEG score recompute
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Frequently asked(5)

What is CVE-2023-28162?
CVE-2023-28162 is a high vulnerability published on June 2, 2023. While implementing AudioWorklets, some code may have casted one type to another, invalid, dynamic type. This could have led to a potentially exploitable crash. This vulnerability affects Firefox < 111, Firefox ESR < 102.9, and Thunderbird < 102.9.
When was CVE-2023-28162 disclosed?
CVE-2023-28162 was first published in the National Vulnerability Database on June 2, 2023, with the most recent update on January 9, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2023-28162 actively exploited?
CVE-2023-28162 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 49.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2023-28162?
CVE-2023-28162 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2023-28162?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-28162, 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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