During the worker lifecycle, a use-after-free condition could have occurred, which could have led to a potentially exploitable crash. This vulnerability affects Firefox < 115.0.2, Firefox ESR < 115.0.2, and Thunderbird < 115.0.1.
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Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2023-07-12. NVD baseline CVSS 8.8; sources differ by 0.0.
During the worker lifecycle, a use-after-free condition could have occurred, which could have led to a potentially exploitable crash. This vulnerability affects Firefox < 115.0.2, Firefox ESR < 115.0.2, and Thunderbird < 115.0.1.
July 12, 2023
December 18, 2025
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| ubuntu | xul-ext-lightning (1:115.3.1+build1-0ubuntu0.23.04.1) @ lunar | 2026-05-24 | ubuntu |
| ubuntu | firefox-locale-ast (115.0.2+build1-0ubuntu0.20.04.1) @ focal | 2026-05-24 | ubuntu |
| redhat | firefox-0:115.3.1-1.el7_9 | 2023-10-05 | redhat |
| redhat | thunderbird-0:115.3.1-1.el7_9 | 2023-10-05 | redhat |
| redhat | thunderbird-0:115.3.1-1.el9_0 | 2023-10-04 | redhat |
| redhat | firefox-0:115.3.1-1.el8_8 | 2023-10-04 | redhat |
| redhat | thunderbird-0:115.3.1-1.el8_1 | 2023-10-04 | redhat |
| redhat | firefox-0:115.3.1-1.el8_1 | 2023-10-04 | redhat |
| redhat | firefox-0:115.3.1-1.el8_2 | 2023-10-04 | redhat |
| redhat | thunderbird-0:115.3.1-1.el8_2 | 2023-10-04 | redhat |
| redhat | thunderbird-0:115.3.1-1.el8_4 | 2023-10-04 | redhat |
| redhat | firefox-0:115.3.1-1.el8_4 | 2023-10-04 | redhat |
| redhat | thunderbird-0:115.3.1-1.el8_6 | 2023-10-04 | redhat |
| redhat | firefox-0:115.3.1-1.el8_6 | 2023-10-04 | redhat |
| redhat | thunderbird-0:115.3.1-1.el9_2 | 2023-10-04 | redhat |
| redhat | firefox-0:115.3.1-1.el9_2 | 2023-10-04 | redhat |
| redhat | firefox-0:115.3.1-1.el9_0 | 2023-10-04 | redhat |
| redhat | thunderbird-0:115.3.1-1.el8_8 | 2023-10-04 | redhat |
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.
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
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.
RHSA-2023:5426 — Important
RHSA-2023:5427 — Important
RHSA-2023:5428 — Important
RHSA-2023:5429 — Important
RHSA-2023:5430 — Important
RHSA-2023:5432 — Important
RHSA-2023:5433 — Important
RHSA-2023:5434 — Important
RHSA-2023:5435 — Important
RHSA-2023:5436 — Important
RHSA-2023:5437 — Important
RHSA-2023:5438 — Important
RHSA-2023:5439 — Important
RHSA-2023:5440 — Important
RHSA-2023:5475 — Important
RHSA-2023:5477 — Important
Firefox vulnerability
Thunderbird vulnerabilities
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.
Explore the affected products and dependency analysis for CVE-2023-3600
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redhat
CWE-416