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High

Bad cast in Dawn in Google Chrome

IdentifiersCVE-2026-11077CWE-125· Out-of-bounds Read

CVE-2026-11077 is a vulnerability in the Dawn component of Google Chrome affecting versions prior to 149.0.7827.53. The issue is described by Google as a bad cast in Dawn that can be triggered by a crafted HTML page. The available supporting content states that successful exploitation allows a remote attacker to execute arbitrary code inside the browser sandbox. The associated CVE metadata maps the issue to CWE-125, indicating an out-of-bounds read class of memory-safety flaw.

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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 allows a remote attacker to achieve arbitrary code execution within the Chrome sandbox in the context of the browser process handling the malicious content. Based on the provided CVSS vector and advisory text, this can result in compromise of confidentiality, integrity, and availability within the sandboxed context. The provided Microsoft advisory also characterizes the underlying weakness as an out-of-bounds read that may lead to information disclosure or browser instability.

Mitigation

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

No specific workaround or temporary mitigation is provided in the supplied content. The practical mitigation is to update affected browsers to a fixed release. Until patching is completed, reducing exposure to untrusted web content may lower risk, but this is not a vendor-provided mitigation.

Remediation

Patch, then assume compromise.

Upgrade Google Chrome to version 149.0.7827.53 or later. For Chromium on Debian, upgrade to the vendor-fixed package versions identified in the advisory, including 149.0.7827.53-1~deb12u1 for bookworm and 149.0.7827.53-1~deb13u1 for trixie. For Microsoft Edge (Chromium-based), upgrade to version 149.0.4022.53 or later, which Microsoft documents as no longer vulnerable via the Chromium dependency.
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

Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.

What this page doesn’t show

The version that knows your environment.

This page is what’s public. Mallory adds the parts that aren’t: which of your assets are affected, which adversaries are exploiting it right now, which detections to deploy, and what to do tonight.
Exposure mapping

Query your assets running an affected version, and investigate the blast radius.

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 activity2

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