Exploited vulnerability · CISA KEV

Is CVE-2026-3909 exploited? Yes: in CISA KEV since 13 Mar 2026

Gociux · Google Skia · data: CISA KEV, CVE record, FIRST EPSS

Yes. CVE-2026-3909, Google Skia Out-of-Bounds Write Vulnerability, is being exploited in the wild. CISA added it to its Known Exploited Vulnerabilities catalog on 13 Mar 2026, 1 days after it was published. It affects Google Skia. If you run it, CISA's required action is: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

What it is

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.

What to do

1. Check whether you run it. Look for Skia in your asset inventory, including appliances and cloud images. Stack check lists every exploited Google CVE at once.
2. Apply the fix. Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
3. If you can't patch today, take the affected service off the internet or restrict who can reach it, and check its logs for signs of compromise since 12 Mar 2026.
4. Get told next time. Email alerts when CISA adds a CVE for Google.

References

• nvd.nist.gov/vuln/detail/CVE-2026-3909

Sources: CISA KEV (exploitation, ransomware use, required action, due date), the CVE record (publication date, CVSS, CNA), NVD and FIRST EPSS (live score). More: all KEV additions in March 2026 · Google scorecard · act-now radar.