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Security Vulnerabilities fixed in Firefox ESR 140.13 — Mozilla

🗓️ 21 Jul 2026 00:00:00Reported by Mozilla FoundationType 
mozilla
 mozilla
🔗 www.mozilla.org👁 7 Views

Firefox ESR 140.13 fixes vulnerabilities; exploit code public; no known wild attacks; memory safety bugs in ESR 115.37, 140.12, 152.

Related
Detection
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB
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CVE-2026-16352
21 Jul 202612:37
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CVE-2026-16350
21 Jul 202612:37
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CVE-2026-16353
21 Jul 202612:37
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CVE-2026-16362
21 Jul 202612:37
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CVE-2026-15718
14 Jul 202612:15
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21 Jul 202612:37
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AlpineLinux
CVE-2026-15718
14 Jul 202612:15
alpinelinux
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mozillafirefoxRange<140.13esr

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21 Jul 2026 00:00Current
6Medium risk
Vulners AI Score6
CVSS 3.15.4
EPSS0.00156
SSVC
7