Information disclosure due to incorrect boundary conditions in the Audio/Video component. This vulnerability was fixed in Firefox 150.0.1, Firefox ESR 140.10.1, Firefox ESR 115.35.1, Thunderbird 150.0.1, and Thunderbird 140.10.1.
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Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-04-28. NVD baseline CVSS 7.5; sources differ by 0.0.
Information disclosure due to incorrect boundary conditions in the Audio/Video component. This vulnerability was fixed in Firefox 150.0.1, Firefox ESR 140.10.1, Firefox ESR 115.35.1, Thunderbird 150.0.1, and Thunderbird 140.10.1.
April 28, 2026
May 1, 2026
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Red Hat Security Advisory: firefox security update
Red Hat Security Advisory: firefox security update
Red Hat Security Advisory: firefox security update
Red Hat Security Advisory: firefox security update
Red Hat Security Advisory: firefox security update
Red Hat Security Advisory: firefox security update
Red Hat Security Advisory: thunderbird security update
Red Hat Security Advisory: firefox security update
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| redhat | firefox-0:140.10.1-1.el9_6 | 2026-06-02 | redhat |
| redhat | firefox-0:140.10.1-1.el10_0 | 2026-06-02 | redhat |
| redhat | firefox-0:140.10.1-1.el9_2 | 2026-06-02 | redhat |
| redhat | firefox-0:140.10.1-1.el9_4 | 2026-06-01 | redhat |
| redhat | firefox-0:140.10.1-1.el9_0 | 2026-05-28 | redhat |
| redhat | thunderbird-0:140.10.1-1.el8_10 | 2026-05-26 | redhat |
| redhat | firefox-0:140.10.1-1.el8_10 | 2026-05-20 | redhat |
| redhat | firefox-0:140.10.1-1.el9_8 | 2026-05-19 | redhat |
| redhat | thunderbird-0:140.10.1-1.el9_8 | 2026-05-19 | redhat |
| redhat | firefox-0:140.10.1-1.el10_2 | 2026-05-19 | redhat |
| redhat | thunderbird-0:140.10.1-1.el10_2 | 2026-05-19 | 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 time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.
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redhat
CWE-119