CVE-2026-0821

CriticalCVSS 9.8/10Last modified Jun 17, 2026

Description

A vulnerability was determined in quickjs-ng quickjs up to 0.11.0. This vulnerability affects the function js_typed_array_constructor of the file quickjs.c. Executing a manipulation can lead to heap-based buffer overflow. The attack may be launched remotely. The exploit has been publicly disclosed and may be utilized. This patch is called c5d80831e51e48a83eab16ea867be87f091783c5. A patch should be applied to remediate this issue.

Metrics

CVSS 3.1 9.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

Affected software

No affected versions have been published.

Timeline

Published
Jan 10, 2026
Last modified
Jun 17, 2026
NVD status
Modified

Related CVEs from 2026

CVE-2026-08228.8A vulnerability was identified in quickjs-ng quickjs up to 0.11.0. This issue affects the function js_typed_array_sort of the file quickjs.cCVE-2026-08243.5A security flaw has been discovered in questdb ui up to 1.11.9. Impacted is an unknown function of the component Web Console. The manipulatiCVE-2026-08255.3The Database for Contact Form 7, WPforms, Elementor forms plugin for WordPress is vulnerable to authorization bypass due to missing capabiliCVE-2026-08269.2In certain scenarios when the admin has enabled Interactive Connectivity Establishment (ICE), a buffer overflow could enable CVE-2026-08277.1During an internal security assessment, a potential vulnerability was discovered in Lenovo Diagnostics and the HardwareScanAddin used in LenCVE-2026-08287.5Kernel driver ProcessMonitorDriver.sys in Safetica's endpoint client x64 , versions 10.5.75.0 and 11.11.4.0, allows unprivileged user to abuCVE-2026-08295.8The Frontend File Manager Plugin WordPress plugin through 23.5 allows unauthenticated users to send emails through the site without any secuCVE-2026-08307.8Processing specially crafted workspace folder names could allow for arbitrary command injection in the Kiro GitLab Merge-Request helper in KCVE-2026-08315.3The Templately plugin for WordPress is vulnerable to Arbitrary File Write in all versions up to, and including, 3.4.8. This is due to inadeqCVE-2026-08327.3The New User Approve plugin for WordPress is vulnerable to unauthorized access of data and modification of data due to a missing capability CVE-2026-08336.4The Team Section Block plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's block in all versions up to, and iCVE-2026-08348.8Logic vulnerability in TP-Link Archer C20 v5, 6.0, Archer AX53 v1.0 and TL-WR841N v13 (TDDP module) allows unauthenticated adjacent attacker
CVE-2026-0821: Critical severity, CVSS 9.8 | Vulnix