CVE-2026-92021

A use-after-free vulnerability exists in the JavaScript Engine: JIT component of the Firefox browser and Thunderbird mail client. This flaw was addressed in Firefox ESR 140.16 and Thunderbird 140.16 . No specific exploit details or in-the-wild exploitation information are provided in the documents.

CVE-2026-92021 Use-after-free in the JavaScript Engine: JIT component

Use-after-free in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox ESR 140.16 and Thunderbird 140.16...

CVE-2026-92021

Use-after-free in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox ESR 140.16 and Thunderbird 140.16...

EUVD-2026-78484

Use-after-free in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox ESR 140.16 and Thunderbird 140.16...

Chromium CVE-2026-87657: Use after free in V8

This CVE was assigned by Chrome. Microsoft Edge Chromium-based ingests Chromium, which addresses this vulnerability. Please see Google Chrome Releases for more information...

CVE-2026-92021: Use After Free

Use-after-free in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox ESR 140.16 and Thunderbird 140.16...

PT-2026-91957

Name of the Vulnerable Software and Affected Versions Firefox ESR versions prior to 140.16 Thunderbird versions prior to 140.16 Description A use-after-free issue exists within the Just-In-Time JIT component of the JavaScript Engine. A use-after-free is a memory corruption flaw that occurs when a...

KLA91284 Multiple vulnerabilities in Mozilla Firefox ESR

Multiple vulnerabilities were found in Mozilla Firefox ESR. Malicious users can exploit these vulnerabilities to bypass security restrictions, cause denial of service, execute arbitrary code, obtain sensitive information. Below is a complete list of vulnerabilities: 1. A remote code execution...

Astra Linux – Vulnerability in Chromium

Inappropriate implementation in V8 in Google Chrome prior to 146.0.7680.153 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. Chromium security severity: High...

Astra Linux – Vulnerability in Chromium

Type Confusion in V8 in Google Chrome prior to 149.0.7827.53 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. Chromium security severity: High...

Astra Linux – Vulnerability in Firefox and Thunderbird

Use-after-free in the JavaScript Engine component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9...

Astra Linux – Vulnerability in Firefox and Thunderbird

JIT compilation errors in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 146, Firefox ESR 140.6, Thunderbird 146, and Thunderbird 140.6...

Astra Linux – Vulnerability in Chromium

“Type Confusion in V8” in Google Chrome before version 129.0.6668.70 allowed a remote attacker to perform out-of-bounds memory access through a crafted HTML page. Chromium security severity: High...

Astra Linux – Vulnerability in Chromium

Type Confusion in V8 in Google Chrome before version 129.0.6668.100 allowed a remote attacker to potentially exploit heap corruption through a crafted HTML page. Chromium security severity: High...

Astra Linux – Vulnerability in Chromium

Before version 137.0.7151.55, using V8 in Google Chrome allowed a remote attacker to potentially exploit heap corruption through a crafted HTML page. Chromium security severity: High...

Astra Linux – Vulnerability in Chromium

Integer overflow in V8 in Google Chrome prior to version 137.0.7151.119 allowed a remote attacker to potentially perform out-of-bounds memory access through a crafted HTML page. Chromium security severity: High...

Astra Linux – Vulnerability in Firefox and Thunderbird

Uninitialized memory in the JavaScript Engine component. This vulnerability was fixed in Firefox 142, Firefox ESR 128.14, Firefox ESR 140.2, Thunderbird 142, Thunderbird 128.14, and Thunderbird 140.2...

Astra Linux – Vulnerability in Chromium

Type Confusion in V8 in Google Chrome prior to 149.0.7827.53 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. Chromium security severity: High...

Astra Linux – Vulnerability in Zabbix

Duktape is a third-party embeddable JavaScript engine, focusing on portability and minimal footprint. When adding too many values in the valstack, JavaScript can crash. This issue arises due to a bug in Duktape 2.6, which is a third-party solution that we use...

Astra Linux – Vulnerability in Chromium

The vulnerability allows a remote attacker to execute arbitrary code within a sandbox, through a crafted HTML page, using V8 in Google Chrome before version 131.0.6778.204. Chromium security severity: High...