ZeroHour

CVE-2026-85050

mass

Out-of-Bounds Write in Google Chrome for Android WebGL Allows Sandbox Escape

CVSS 3.1
9.6 critical
EPSS
<1%p26
Published
()
Modified
AI analysis

CVE-2026-85050 is an out-of-bounds write (CWE-787) in the WebGL component of Google Chrome running on Android, fixed in version 152.0.7977.82. An attacker can trigger it by persuading a user to open a crafted HTML page, since exploitation requires user interaction but no privileges. Successful exploitation yields arbitrary code execution outside the browser sandbox, giving the attacker the privileges of the user on the device, hence the critical 9.6 CVSS with scope change. Only Chrome on Android versions prior to 152.0.7977.82 are affected by this bug; desktop Chrome is not indicated in the advisory. No public proof-of-concept, KEV listing, or confirmed in-the-wild exploitation of this specific CVE is known, though a related Chrome zero-day (CVE-2026-85046) was reported exploited in the wild and addressed in the same release.

What to do: Update Chrome on Android to 152.0.7977.82 or later via the Google Play Store and verify the version in chrome://version. Organizations should check MDM/EMM or Chrome enterprise version reporting for unpatched Android devices and prioritize patching, noting the same release addressed a zero-day (CVE-2026-85046) that was exploited in the wild. As an interim mitigation, users should avoid opening untrusted web pages; no other workaround is known.

Affected
Google Chrome (Android)prior to 152.0.7977.82
Estimated exposure
masson the order of billions of installations (Chrome is the dominant Android browser, with billions of Android users) — Chrome's Android install base is counted in billions per public browser market-share and Play Store install data, and only Android versions below 152.0.7977.82 are exposed; the truly vulnerable share of those users is unknown but likely…

Order-of-magnitude estimate by the model from install counts, market share and public scan data it knows; verify before quoting.

Description

Out of bounds write in WebGL in Google Chrome on on Android prior to 152.0.7977.82 allowed a remote attacker to execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: High)

Vendors
google
Products
chrome
Weakness
CWE-787
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

In the news

Google Chrome Zero-day Vulnerability Exploited in the Wild (CVE-2026-85046)

Google patched 12 Chrome flaws including in-the-wild V8 zero-day CVE-2026-85046; CISA added it to the KEV catalog.

Google released Chrome 152.0.7977.82/.83 for Windows and Mac (152.0.7977.82 for Linux) fixing 12 vulnerabilities, including CVE-2026-85046, a type confusion flaw in the V8 JavaScript engine being exploited in the wild. CISA added CVE-2026-85046 to its Known Exploited Vulnerabilities Catalog with a patch deadline of September 18, 2026. This is Chrome's sixth zero-day patched in 2026, following CVE-2026-2441, CVE-2026-3909, CVE-2026-3910, CVE-2026-5281 and CVE-2026-11645. The other 11 fixes include use-after-free, out-of-bounds, race condition and input validation flaws in Skia, WebGL, DevTools, Network, Compositing and other components.