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CVE-2026-3922 is a high-severity use-after-free vulnerability in the MediaStream component of Google Chrome affecting versions prior to 146.0.7680.71. The flaw can be triggered by a remote attacker through a crafted HTML page, leading to a stale object being accessed after it has been freed. This memory-safety error can result in heap corruption and may enable further exploitation depending on runtime conditions and exploit reliability.
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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.
High-severity use-after-free vulnerability in Chrome (component indicated as MediaStream in the content).
A use-after-free (CWE-416) vulnerability in Google Chrome's MediaStream component (pre-146.0.7680.71) that could allow remote exploitation leading to heap corruption via a crafted HTML page.
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.