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High

Use-after-free in Google Chrome Core on Windows

IdentifiersCVE-2026-12007CWE-416· Use After Free

CVE-2026-12007 is a critical use-after-free vulnerability in the Core component of Google Chrome on Windows. According to the provided content, the flaw affects Chrome versions prior to 149.0.7827.115 and can be triggered by a remote attacker via a crafted HTML page. As a use-after-free condition, the vulnerability arises when memory is accessed after it has been freed, creating the possibility of memory corruption and attacker-controlled execution flow. Google classified the issue as critical and reported it on 2026-05-26.

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ANALYST BRIEF

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.

Successful exploitation may allow a remote attacker to execute arbitrary code in the context of the affected Chrome process on Windows. The provided content also indicates that exploitation of Chrome critical memory-corruption flaws could lead to browser crashes and potentially full system compromise depending on post-exploitation conditions and sandbox escape availability.

Mitigation

If you can’t patch tonight, do this now.

No specific workaround or temporary mitigation is provided in the supplied content. Practical mitigation is to reduce exposure until patching is complete by preventing use of vulnerable Chrome versions on Windows, restricting access to untrusted web content, and prioritizing rapid browser update deployment across managed endpoints.

Remediation

Patch, then assume compromise.

Upgrade Google Chrome on Windows to version 149.0.7827.115 or later. Where Chromium packages are used instead of Chrome, apply the relevant vendor security updates; the provided Debian advisory recommends upgrading chromium to 149.0.7827.114-1~deb12u1 on Debian bookworm or 149.0.7827.114-1~deb13u1 on Debian trixie.
PUBLIC EXPLOITS

Exploits

No public exploits tracked yet. Mallory keeps watching.

VALID 0 / 0 TOTALView more in app

No public exploit code observed for this vulnerability.

EXPOSURE SURFACE

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.

VendorProductType
GoogleChromeapplication

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What this page doesn’t show

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Exposure mapping

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Threat actor evidence

Every observed campaign linking this CVE to a named adversary.

Associated malware

Malware families riding this exploit, with evidence and IOCs.

Detection signatures

YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.

Vendor-by-vendor mapping

Cross-references every affected SKU, including bundled OEM variants.

Social activity1

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