CVE-2023-4046: Debian Linux

Medium severity, CVSS 5.3. EPSS: 1.1% chance of exploitation in the next 30 days.

In some circumstances, a stale value could have been used for a global variable in WASM JIT analysis. This resulted in incorrect compilation and a potentially exploitable crash in the content process. This vulnerability affects Firefox < 116, Firefox ESR < 102.14, and Firefox ESR < 115.1.

Affected products

• Debian Debian Linux: version 11.0 only; version 12.0 only
• Mozilla Firefox: before 116.0 (fixed in 116.0); from 102.0, before 102.14 (fixed in 102.14); from 115.0, before 115.1 (fixed in 115.1)

Published 2023-08-01. Last modified 2026-06-17.