Skip to main content
Live Webinar with SANS (June 25)— Agentic CTI Automation for Fun & ProfitRegister Free
Mallory
High

Out-of-bounds read/write in Chrome Dawn on Android

IdentifiersCVE-2026-9889CWE-787· Out-of-bounds Write

CVE-2026-9889 is an out-of-bounds read and write vulnerability in the Dawn component of Google Chrome on Android prior to version 148.0.7778.216. The issue can be triggered by a remote attacker via a crafted HTML page, leading to memory corruption in the browser process or a related rendering/graphics path. Google describes the vulnerability as affecting Dawn and notes that successful exploitation could potentially result in a sandbox escape. The available advisory text does not provide the specific vulnerable function or code path.

Share:
For your environment

Are you exposed to this one?

Mallory correlates every CVE against your assets, your vendors, and active adversary campaigns. Know which vulnerabilities matter for you, not just which ones are loud.

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 corrupt memory in Chrome on Android and potentially achieve a sandbox escape. Depending on exploit reliability and surrounding conditions, this could enable browser compromise, code execution in a more privileged context, application instability, or a crash.

Mitigation

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

No specific workaround is provided in the cited advisories. The practical mitigation is prompt patching to a fixed browser version. Until updates are applied, reducing exposure to untrusted web content may lower risk, but no complete temporary mitigation is documented.

Remediation

Patch, then assume compromise.

Upgrade Google Chrome on Android to version 148.0.7778.216 or later. For Chromium-based downstream products, apply the vendor-provided updates that incorporate the Chromium fix. Microsoft indicates Edge is fixed in version 148.0.3967.97. Debian advises upgrading chromium packages to 148.0.7778.215-1~deb12u1 on oldstable (bookworm) or 148.0.7778.215-1~deb13u1 on stable (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

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

ACTIVITY FEED

Recent activity

1 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.

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 activity

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