🛡️ CVE-2026-10702 — firefox

🟡 CVSS 4.3 — Medium ✅ No Known Exploit CWE-843 NVD
4.3
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 151.0.3.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. A user must be tricked into taking some action. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality none, integrity none, availability low.

Weakness class

CVE-2026-10702 is classified as CWE-843: Type Confusion. A resource is accessed as one type while actually being another, so the interpretation of its memory is wrong.

Affected software

CVE-2026-10702 is recorded against 2 packages.

  • firefox (fixed in 151.0.3)
  • unknown

Timeline and source

Published on 2 June 2026 and last revised on 22 July 2026. No public exploit is currently recorded for this entry. Record sourced from NVD.

References

bugzilla.mozilla.org
www.mozilla.org
access.redhat.com
bugzilla.redhat.com
security.access.redhat.com

CVE-2026-10702 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

Details

Severity MEDIUM
CVSS Score 4.3
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
CWE CWE-843
Public Exploit ✅ No
Source NVD
Published 2026-06-02
Updated 2026-08-11
Modified 2026-07-22
Fix URL N/A

Affected Packages

Software From version Fixed in
firefox — 151.0.3
unknown — —

Similar Threats

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