CVE-2026-3847 | THREATINT

Description

Memory safety bugs present in Firefox 148.0.2. 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 affects Firefox < 148.0.2.

PUBLISHED Reserved 2026-03-09 | Published 2026-03-10 | Updated 2026-03-11 | Assigner mozilla

Product status

Any version before 148.0.2

affected

Credits

Jon Coppeard and the Mozilla Fuzzing Team

References

bugzilla.mozilla.org/...i?bug_id=2017513%2C2017622%2C2019341 (Memory safety bugs fixed in Firefox 148.0.2)

www.mozilla.org/security/advisories/mfsa2026-19/

cve.org (CVE-2026-3847)

nvd.nist.gov (CVE-2026-3847)

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