CVE-2026-16412

N/A Unknown

Published: July 21, 2026 Modified: July 21, 2026

Description

Memory safety bugs present in Firefox ESR 140.12 and Firefox 152. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 153 and Firefox ESR 140.13.

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References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory

https://bugzilla.mozilla.org/buglist.cgi?bug_id=2005113%2C2025369%2C2026301%2C2028663%2C2029761%2C2042242%2C2043271%2C2043300%2C2044612%2C2045378%2C2045406%2C2045407%2C2045616%2C2045626%2C2045730%2C2045732%2C2045769%2C2045771%2C2047957%2C2048934%2C2049818%2C2049822%2C2050151%2C2050368%2C2051653%2C2051658

Source: security@mozilla.org

https://bugzilla.mozilla.org/buglist.cgi?bug_id=2043035%2C2045057%2C2045187%2C2045402%2C2045417%2C2045482%2C2045611%2C2045618%2C2045756%2C2046917%2C2047718

Source: security@mozilla.org

https://bugzilla.mozilla.org/buglist.cgi?bug_id=2045413%2C2053635%2C2053637

Source: security@mozilla.org

https://www.mozilla.org/security/advisories/mfsa2026-68/

Source: security@mozilla.org

https://www.mozilla.org/security/advisories/mfsa2026-70/

Source: security@mozilla.org

5 reference(s) from NVD

Quick Stats

CVSS v3 Score

N/A / 10.0

Exploitation Status

Not in CISA KEV