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Mallory
High

Out-of-bounds Read in Google Chrome GPU

IdentifiersCVE-2026-9121CWE-125· Out-of-bounds Read

CVE-2026-9121 is an out-of-bounds read vulnerability in the GPU component of Google Chrome affecting versions prior to 148.0.7778.179. According to the provided content, the flaw can be triggered by a remote attacker using a crafted HTML page. The vulnerability is described as an out-of-bounds read that could potentially lead to heap corruption during processing in the GPU-related code path. Chromium rated the issue Medium severity, and the available content does not provide the specific vulnerable function or source file.

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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 could allow a remote attacker to trigger memory corruption in the Chrome GPU component while a victim processes a crafted HTML page. The provided content states this may potentially result in heap corruption. The CVSS information included in the content indicates possible high impacts to confidentiality, integrity, and availability, but the exact post-exploitation behavior is not further detailed in the supplied material.

Mitigation

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

Apply the vendor update as the primary mitigation. Until patching is complete, reduce exposure by limiting use of untrusted or attacker-controlled websites and HTML content, and by using standard browser hardening and isolation controls appropriate for Chrome deployments. The provided content does not describe any vendor-specified workaround other than updating.

Remediation

Patch, then assume compromise.

Update Google Chrome to version 148.0.7778.179 or later. The vulnerability affects versions prior to 148.0.7778.179, and Google addressed it in the Chrome Stable channel update to 148.0.7778.178/179 for Windows and Mac and 148.0.7778.178 for Linux as referenced in the supplied content. Organizations should ensure browser deployments are updated and restarted so the patched version is active.
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

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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

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Associated malware

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Detection signatures

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Vendor-by-vendor mapping

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

Social activity5

Community discussion across Reddit, Mastodon, and other social sources.