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Actively exploited vulnerability

Google Skia: memory corruption flaw under attack

CVE-2026-3909 · Google Skia Out-of-Bounds Write Vulnerability

Concerns everyone who uses it8.8 high

What is affected

Google Skia is found on ordinary personal computers and phones, so this is not only a problem for companies. If you use it and have not updated since the fix was released, you are exposed.

Google Skia contains an out-of-bounds write vulnerability that could allow a remote attacker to perform out of bounds memory access via a crafted HTML page. This vulnerability affects Google Chrome and ChromeOS, Android, Flutter, and possibly other products.

CISA's description

What an attacker can do

This is a memory corruption flaw. It lets an attacker corrupt the program's memory by feeding it specially crafted content: a web page, a file or a network message. The result ranges from a crash to the attacker running their own code.

How it is reached
Over the internet or network
Access the attacker needs
No account needed
Does the victim have to do something?
Yes, the victim must open or click something

What to do

  1. Update Google Skia now. Open the update or "About" screen, install whatever is offered and restart the app or device, because the fix is not active until you do.
  2. Turn on automatic updates so the next fix arrives without you having to look for it.
  3. If your device is too old to receive this update, stop using the affected app for anything sensitive and plan a replacement.

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Action required by CISA for US federal agencies

Vendor advisories and fixes

How urgent is it

CISA added this vulnerability to its Known Exploited Vulnerabilities catalogue on March 13, 2026, which means there is reliable evidence of attacks in the wild. US federal agencies must fix it by March 27, 2026, a deadline that has already passed. That deadline does not bind anyone else, but it shows how seriously the agency rates it.

The EPSS model estimates a 2.3% probability that this flaw will be exploited somewhere in the next 30 days. That is higher than 83% of all scored vulnerabilities.

Its CVSS severity score is 8.8 out of 10 (high), as recorded in the US National Vulnerability Database.

Technical description

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)

NIST National Vulnerability Database
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