Is CVE-2026-3909 in the CISA KEV catalog?

Yes. CVE-2026-3909 is on the CISA Known Exploited Vulnerabilities list, added 2026-03-13.

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

CVE-2026-3909 has a CVSS v3 base score of 8.8 (HIGH).

What is the EPSS score for CVE-2026-3909?

CVE-2026-3909 has an EPSS score of 1.63% (73th percentile), estimating the probability of exploitation in the next 30 days.

CVE & CISA-KEV Catalog

CVE-2026-3909

HIGHCISA KEVEPSS 73th pctl

8.8

CVSS v3

NVD

Description

This CVE was assigned by Chrome. Microsoft Edge (Chromium-based) ingests Chromium, which addresses this vulnerability. Please see Google Chrome Releases for more information. Google is aware that an exploit for CVE-2026-3909 exists in the wild.

CWE-787Out-of-bounds Write

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

1.63%probability of exploitation in 30 days

73rdpercentile

Elevated risk: more likely to be exploited than 73% of all known CVEs.

Known Exploited Vulnerability (CISA KEV)

Google Skia Out-of-Bounds Write Vulnerability

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.

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

Remediation due: 2026-03-27

References

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-03-25.