What is the CVSS score of CVE-2026-3909?

CVE-2026-3909 has a CVSS 3.1 base score of 8.8 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.1%.

Which versions of Chrome are affected by CVE-2026-3909?

CVE-2026-3909 is an actively exploited vulnerability in Google Chrome's Skia graphics library that allows attackers to execute arbitrary code on user systems through malicious webpages.. A patch is available.

Is there a public PoC exploit available for CVE-2026-3909?

Yes, a public proof-of-concept exploit is available for CVE-2026-3909. Prioritise patching immediately. EPSS: 0.1%.

How to fix or mitigate CVE-2026-3909?

Within 24 hours: Issue mandatory Chrome update notification to all users and block access to Chrome versions prior to 146.0.7680.75 at the network level if possible. Within 7 days: Verify 100% patching completion through endpoint management tools and conduct spot-check audits on critical user populations. Within 30 days: Review browser usage logs for exploitation indicators, assess any suspicious endpoint behavior during the vulnerability window, and implement browser update enforcement policies to prevent future exploitation delays.

Chrome CVE-2026-3909

HIGH

Out-of-bounds Write (CWE-787)

2026-03-13 chrome-cve-admin@google.com

Buffer Overflow Memory Corruption Google Chrome Red Hat Suse

8.8

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

8.8 HIGH

AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

ENISA EUVD

HIGH

qualitative

SUSE

HIGH

qualitative

Red Hat

8.8 HIGH

qualitative

Primary rating from NVD.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Added to CISA KEV

Mar 25, 2026 - 14:05 cisa

CISA KEV

PoC Detected

Mar 25, 2026 - 14:05 vuln.today

Public exploit code

Patch released

Mar 25, 2026 - 14:05 nvd

Patch available

Analysis Generated

Mar 13, 2026 - 20:00 vuln.today

CVE Published

Mar 13, 2026 - 19:55 nvd

HIGH 8.8

DescriptionCVE.org

Out of bounds write in Skia in Google Chrome prior to 146.0.7680.75 allowed a remote attacker to perform out of bounds memory access via a crafted HTML page. (Chromium security severity: High)

Articles & Coverage 1

POC CVE-2026-3909: Chromium Skia Atlas Out-of-Bounds PoC Apr 13, 2026

AnalysisAI

Google Chrome's Skia graphics library contains an out-of-bounds write (CVE-2026-3909, CVSS 8.8) enabling remote attackers to perform memory corruption through crafted HTML pages. KEV-listed with public PoC and patches available, this vulnerability in the core graphics rendering engine affects all Chromium-based browsers.

Technical ContextAI

Skia handles all 2D graphics rendering in Chrome, including text, images, SVG, and Canvas operations. The out-of-bounds write occurs when processing specific graphical primitives, allowing an attacker to corrupt heap memory in the renderer process. This vulnerability is in a low-level graphics component that processes all visual content, making it triggerable through any webpage.