1. Home
  2. Vulnerabilities
  3. CVE-2026-10702
7.5
HIGH CVSS 3.1
CVE-2026-10702
JIT miscompilation in the JavaScript Engine: JIT component
Overview
Description

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

Details
INFO

Published Date :

June 2, 2026, 8:16 p.m.

Last Modified :

July 22, 2026, 7:10 p.m.

Remotely Exploit :

Yes !

Source :

[email protected]
Impact
Affected Products

The following products are affected by CVE-2026-10702 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Mozilla firefox
: Total Affected Vendor : 1 | Products : 1
Scoring
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 134c704f-9b21-4f2e-91b3-4a467353bcc0
CVSS 3.1 MEDIUM 134c704f-9b21-4f2e-91b3-4a467353bcc0
CVSS 3.1 HIGH 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
Solution
Update Firefox to patch JIT miscompilation memory corruption vulnerability.
  • Update Firefox to version 151.0.3 or later.
  • Apply security patches for the JavaScript engine.
  • Ensure the JIT component is updated.
Public PoC/Exploit Available at Github

CVE-2026-10702 has a 5 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

References
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2026-10702.

URL Resource
https://bugzilla.mozilla.org/show_bug.cgi?id=2040903 Permissions Required
https://www.mozilla.org/security/advisories/mfsa2026-54/ Vendor Advisory
https://access.redhat.com/security/cve/CVE-2026-10702
https://bugzilla.redhat.com/show_bug.cgi?id=2484118
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-10702.json
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-10702 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-10702 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Profile Photo
sn0x-sharma/NEMESIS

Differential fuzzer for WebAssembly-GC / JavaScript-JIT compilers finds miscompilations across V8 tiers, then minimizes and reports them. For authorized research & responsible disclosure.

Makefile Python C++ JavaScript

Updated: 1 week, 5 days ago
19 stars 0 fork 0 watcher
Born at : July 20, 2026, 10:32 p.m. This repo has been linked 2 different CVEs too.
Profile Photo
shrijeet-lokhande/IonStack

None

Updated: 2 weeks, 2 days ago
0 stars 0 fork 0 watcher
Born at : July 18, 2026, 5:45 a.m. This repo has been linked 1 different CVEs too.
Profile Photo
TDCQ/Cyber57K

【赛博57库】 公众号欢迎大家关注

Python HTML JavaScript

Updated: 2 weeks, 6 days ago
2 stars 0 fork 0 watcher
Born at : July 13, 2026, 8:57 a.m. This repo has been linked 11 different CVEs too.
Profile Photo
pubglite55/oppo-ghostlock

OPPO Find N2 GhostLock (CVE-2026-43499) exploit adaptation

JavaScript HTML C Assembly Shell Python Makefile

Updated: 2 weeks, 2 days ago
47 stars 21 fork 21 watcher
Born at : July 9, 2026, 10:46 p.m. This repo has been linked 2 different CVEs too.
Profile Photo
liamromanis101/K8s-container_escape_audit

Look for possible escape vectors from a container

aws azure cicd devsecops docker kubernetes kubernetes-security cve-scanning kernel-hardening kernel-security container-security linux linux-kernel

Shell

Updated: 2 weeks, 3 days ago
6 stars 0 fork 0 watcher
Born at : April 16, 2026, 9:50 a.m. This repo has been linked 43 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2026-10702 vulnerability anywhere in the article.

  • The Hacker News
Researchers Show a Single Malicious Webpage Visit Can Compromise Tor Browser

Nebula Security says a patched Firefox JIT flaw could be triggered by simply visiting a malicious webpage and was also used to compromise Tor Browser. Tracked as CVE-2026-10702, the bug provides arbit ... Read more

Published Date: Jul 29, 2026 (4 days, 21 hours ago)
  • The Hacker News
15-Year-Old GhostLock Flaw Enables Root and Container Escape on Most Linux Distros

Researchers at Nebula Security have disclosed GhostLock (CVE-2026-43499), a 15-year-old Linux kernel flaw that lets any logged-in user take full root control of a machine that has not been patched. Th ... Read more

Published Date: Jul 08, 2026 (3 weeks, 5 days ago)

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2026-10702 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Translated by [email protected]

    Jul. 22, 2026

    Action Type Old Value New Value
    Added Translation Title: Firefox de Mozilla, Description: Compilación incorrecta JIT en el motor JavaScript: componente JIT. Esta vulnerabilidad fue corregida en Firefox 151.0.3.
  • CVE Modified by 0b0ca135-0b70-47e7-9f44-1890c2a1c46c

    Jul. 15, 2026

    Action Type Old Value New Value
    Changed Affected [{'cpes': ['cpe:/o:redhat:enterprise_linux:10'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux 10', 'defaultStatus': 'unaffected'}, {'cpes': ['cpe:/o:redhat:enterprise_linux:6'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux 6', 'defaultStatus': 'unaffected'}, {'cpes': ['cpe:/o:redhat:enterprise_linux:7'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux 7', 'defaultStatus': 'unaffected'}, {'cpes': ['cpe:/o:redhat:enterprise_linux:8'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux 8', 'defaultStatus': 'unaffected'}, {'cpes': ['cpe:/o:redhat:enterprise_linux:9'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux 9', 'defaultStatus': 'unaffected'}] [{'cpes': ['cpe:/o:redhat:enterprise_linux:10'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux 10', 'packageName': 'firefox', 'collectionURL': 'https://access.redhat.com/downloads/content/package-browser/', 'defaultStatus': 'unaffected'}, {'cpes': ['cpe:/o:redhat:enterprise_linux:10'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux 10', 'packageName': 'rhel10/firefox-flatpak', 'collectionURL': 'https://access.redhat.com/downloads/content/package-browser/', 'defaultStatus': 'unaffected'}, {'cpes': ['cpe:/o:redhat:enterprise_linux:6'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux 6', 'packageName': 'firefox', 'collectionURL': 'https://access.redhat.com/downloads/content/package-browser/', 'defaultStatus': 'unaffected'}, {'cpes': ['cpe:/o:redhat:enterprise_linux:7'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux 7', 'packageName': 'firefox', 'collectionURL': 'https://access.redhat.com/downloads/content/package-browser/', 'defaultStatus': 'unaffected'}, {'cpes': ['cpe:/o:redhat:enterprise_linux:8'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux 8', 'packageName': 'firefox', 'collectionURL': 'https://access.redhat.com/downloads/content/package-browser/', 'defaultStatus': 'unaffected'}, {'cpes': ['cpe:/o:redhat:enterprise_linux:9'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux 9', 'packageName': 'firefox', 'collectionURL': 'https://access.redhat.com/downloads/content/package-browser/', 'defaultStatus': 'unaffected'}]
  • CVE Modified by 0b0ca135-0b70-47e7-9f44-1890c2a1c46c

    Jun. 30, 2026

    Action Type Old Value New Value
    Added Affected [{'cpes': ['cpe:/o:redhat:enterprise_linux:10'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux 10', 'defaultStatus': 'unaffected'}, {'cpes': ['cpe:/o:redhat:enterprise_linux:6'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux 6', 'defaultStatus': 'unaffected'}, {'cpes': ['cpe:/o:redhat:enterprise_linux:7'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux 7', 'defaultStatus': 'unaffected'}, {'cpes': ['cpe:/o:redhat:enterprise_linux:8'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux 8', 'defaultStatus': 'unaffected'}, {'cpes': ['cpe:/o:redhat:enterprise_linux:9'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux 9', 'defaultStatus': 'unaffected'}]
    Added CVSS V3.1 AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
    Added CWE CWE-733
    Added Reference https://access.redhat.com/security/cve/CVE-2026-10702
    Added Reference https://bugzilla.redhat.com/show_bug.cgi?id=2484118
    Added Reference https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-10702.json
  • CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0

    Jun. 17, 2026

    Action Type Old Value New Value
    Added SSVC {'id': 'CVE-2026-10702', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-06-03T15:13:53.535767Z'}
  • CVE Modified by [email protected]

    Jun. 17, 2026

    Action Type Old Value New Value
    Added Affected [{'vendor': 'Mozilla', 'product': 'Firefox', 'versions': [{'status': 'unaffected', 'version': '151.0.3', 'versionType': 'rpm', 'lessThanOrEqual': '*'}]}]
  • Initial Analysis by [email protected]

    Jun. 04, 2026

    Action Type Old Value New Value
    Added CPE Configuration OR *cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:* versions up to (excluding) 151.0.3
    Added Reference Type Mozilla Corporation: https://bugzilla.mozilla.org/show_bug.cgi?id=2040903 Types: Permissions Required
    Added Reference Type Mozilla Corporation: https://www.mozilla.org/security/advisories/mfsa2026-54/ Types: Vendor Advisory
  • CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0

    Jun. 03, 2026

    Action Type Old Value New Value
    Added CVSS V3.1 AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
    Added CWE CWE-843
  • New CVE Received by [email protected]

    Jun. 02, 2026

    Action Type Old Value New Value
    Added Description JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 151.0.3.
    Added Reference https://bugzilla.mozilla.org/show_bug.cgi?id=2040903
    Added Reference https://www.mozilla.org/security/advisories/mfsa2026-54/
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CVSS
Vulnerability Scoring Details
Base CVSS Score: 7.5
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact