CVE-2026-16361 PUBLISHED

Memory safety bugs fixed in Firefox ESR 115.38 and Firefox ESR 140.13

Assigner: mozilla
Reserved: 20.07.2026 Published: 21.07.2026 Updated: 21.07.2026

Memory safety bugs present in Firefox ESR 115.37 and Firefox ESR 140.12. 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 ESR 115.38 and Firefox ESR 140.13.

Product Status

Vendor Mozilla
Product Firefox
Versions
  • unaffected from 115.38 to 115.* (incl.)
  • unaffected from 140.13 to * (incl.)

Credits

  • The Mozilla Fuzzing Team

References