Out-of-bounds read in WebRTC in Google Chrome on Windows
CVE-2026-12461 is a high-severity out-of-bounds read vulnerability in the WebRTC component of Google Chrome on Windows prior to version 149.0.7827.155. According to the provided content, a remote attacker can trigger the flaw via a crafted HTML page, causing WebRTC to read memory outside the intended bounds. This can result in disclosure of potentially sensitive information from the browser process memory. The issue is described as affecting Chromium as well, and therefore also impacts Chromium-based browsers such as Microsoft Edge through the upstream dependency until patched.
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Impact, mitigation & remediation
What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
Impact
What an attacker gets, and what they’ve been doing with it.
Mitigation
If you can’t patch tonight, do this now.
Remediation
Patch, then assume compromise.
Exploits
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Affected products & vendors
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.
Recent activity
6 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A high-severity out-of-bounds read vulnerability in Chrome's WebRTC component.
A high-severity out-of-bounds read vulnerability in Chrome WebRTC.
The version that knows your environment.
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.