PT-2026-44681 · Google · V8+1

Amyb · CVE-2026-9973 · Published 2026-05-27 · Updated 2026-05-30

Positive Technologies (AI Summary)

CVSS v2.0

10

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Google Chrome versions prior to 148.0.7778.216

Description An out-of-bounds write exists in the V8 JavaScript engine, which is the component responsible for compiling and executing JavaScript code. This issue stems from a JIT (Just-In-Time) loop optimization bug, where the engine optimizes code during execution to improve performance. A remote attacker can exploit this by using a crafted HTML page to execute arbitrary code within a sandbox.

Recommendations Update to version 148.0.7778.216 or later.

Exploit

Fix

DoS

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

BDU:2026-10243

CVE-2026-9973

ECHO-9FD0-82C4-D881

OPENSUSE-SU-2026:10906-1

Affected Products

Google Chrome

V8

References · 164

• 🔥 https://github.com/jaf0rk/CVE-2026-9973-exploit · Exploit
• https://osv.dev/vulnerability/openSUSE-SU-2026:10906-1 · Vendor Advisory
• https://chromereleases.googleblog.com/2026/05/stable-channel-update-for-desktop_0877304591.html · Vendor Advisory
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-9973 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-9973 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2026-9973 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-9973 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-9973 · Security Note
• https://bdu.fstec.ru/vul/2026-10243 · Security Note
• https://suse.com/security/cve/CVE-2026-9929 · Note
• https://suse.com/security/cve/CVE-2026-9905 · Note
• https://suse.com/security/cve/CVE-2026-9954 · Note
• https://suse.com/security/cve/CVE-2026-9907 · Note
• https://suse.com/security/cve/CVE-2026-10009 · Note
• https://issues.chromium.org/issues/509268941 · Note