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CVE-2026-12464 is a high-severity use-after-free vulnerability in the Browser component of Google Chrome prior to version 149.0.7827.155. The flaw is a memory-safety error in which previously freed memory can be accessed after release, creating conditions for memory corruption. According to the available vendor description, exploitation requires an attacker to have already compromised the renderer process and then leverage the bug via a crafted HTML page to potentially escape Chrome's sandbox. The issue affects Chromium-based browsers that incorporate the vulnerable Chromium codebase, including Google Chrome and downstream Chromium-based products until they are updated to fixed builds.
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What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
If you can’t patch tonight, do this now.
Patch, then assume compromise.
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
8 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A high-severity use-after-free vulnerability in the Chrome browser component.
A high-severity use-after-free vulnerability in Chrome Browser.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.