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CVE-2026-3540 is a high-severity vulnerability in the WebAudio component of Google Chrome prior to version 145.0.7632.159. The issue is described as an inappropriate implementation in WebAudio that can be triggered by a crafted HTML page, leading to out-of-bounds memory access. The flaw affects Chromium-based browsers that incorporate the vulnerable codebase, including Google Chrome and downstream consumers such as Microsoft Edge once mapped to the corresponding Chromium fix level. The available information does not identify the specific vulnerable function or code path, but the bug class indicates improper handling of attacker-controlled web content within WebAudio processing.
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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.
11 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
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.