SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2021-30606

Chromium: CVE-2021-30606 Use after free in Blink

HIGH 8.8EPSS 4.13%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (4.13%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

Chromium: CVE-2021-30606 Use after free in Blink

CVSS 3.1
8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS
4.13% probability · 91th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-416
Affected
microsoft/edge · microsoft/edge chromium · fedoraproject/fedora
Source
chrome-cve-admin@google.com
EPSS trend
0%3%5%26 October 2026: 4.13%26 October 202626 October 2026

EPSS 4.1% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.