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CVE-2025-9478 is a use-after-free vulnerability in the ANGLE component of Google Chrome before version 139.0.7258.154. A remote attacker can supply a crafted HTML page to potentially exploit heap corruption. Google fixed the vulnerability in Chrome Stable releases 139.0.7258.154 and 139.0.7258.155. The specific vulnerable function and allocation lifecycle are not identified.
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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.
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Patch, then assume compromise.
No valid public exploits. Mallory filtered out 1 candidate as fakes, detection scripts, or README-only repos.
All candidate exploits were filtered out by Mallory's validation.
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.
31 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A use-after-free vulnerability in ANGLE affecting Google Chrome versions before 139.0.7258.154, allowing potential heap corruption through a crafted HTML page. The plugin also identifies affected webkit2gtk packages and recommends updating to 2.54.0-1~deb13u1 or later. The reported CVSS v3 base score is 8.8, with user interaction required.
A Chrome vulnerability publicly credited to Google Big Sleep as part of AI-assisted vulnerability discovery disclosures.
Unknown (listed as a trending CVE for Google Chrome without details in the content).
A critical vulnerability in Google Chrome referenced as CVE-2025-9478. The content urges prompt patching to prevent exploitation, indicating it is a high-severity issue likely to be targeted by attackers.
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.