PT-2026-45823 · Mozilla · Firefox

Nebula Security · CVE-2026-10702 · Published 2026-06-02 · Updated 2026-07-29

Positive Technologies (AI Summary)

CVSS v2.0

7.6

High

Base vector

AV:N/AC:H/Au:N/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 151.0.3

Description A JIT miscompilation issue exists in the JavaScript Engine's JIT component, where JIT refers to Just-In-Time compilation, a method of improving program execution speed by compiling code during runtime. This flaw involves type confusion errors that can be exploited by a remote attacker to execute arbitrary code within the browser's renderer process. Real-world incidents indicate this issue has been used as the first stage in a full chain browser-to-kernel exploit to achieve root access on Android 17 devices via a single visit to a malicious webpage.

Recommendations Update to version 151.0.3 or later.

Exploit

Fix

DoS

RCE

Type Confusion

Weakness Enumeration

CWE-733

CWE-843

Related Identifiers

BDU:2026-10106

CVE-2026-10702

OPENSUSE-SU-2026:10977-1

OPENSUSE-SU-2026:11373-1

Affected Products

Firefox

References · 261

• 🔥 https://github.com/NebuSec/CyberMeowfia/tree/main/IonStack/CVE-2026-10702 · Exploit
• https://bdu.fstec.ru/vul/2026-10106 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-10702 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-10702 · Security Note
• https://osv.dev/vulnerability/openSUSE-SU-2026:10977-1 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2026:11373-1 · Vendor Advisory
• https://mozilla.org/en-US/security/advisories/mfsa2026-54/#CVE-2026-10702 · Vendor Advisory
• https://mozilla.org/security/advisories/mfsa2026-54 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-10702 · Vendor Advisory
• https://mozilla.org/en-US/security/advisories/mfsa2026-54 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2026-10702 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-10702 · Security Note
• https://suse.com/security/cve/CVE-2026-12323 · Note
• https://t.me/cveNotify/166020 · Telegram Post
• https://suse.com/security/cve/CVE-2026-8971 · Note