CVE-2021-30574

Exploitation

Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.

SSVC decision

Not assessed by CISA

EPSS probability

1.60% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 73.7% of scored records. A rank, not a probability.

NVD base score

8.8 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

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

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2021-08-03 19:40Z5 YR AGO

Last updated

2024-08-03 22:32Z2 YR AGO

Reserved

2021-04-13

Assigning CNA

Chrome

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-416Use After FreeVariant

Data version

5.1

Document digest

042e875f06384e0327321e7c9af7d4ceea4b914d98b7703489058635433b487c

• chromereleases.googleblog.comhttps://chromereleases.googleblog.com/2021/07/stable-channel-update-for-desktop_20.htmlx_refsource_MISC
• crbug.comhttps://crbug.com/1227315x_refsource_MISC
• lists.fedoraproject.orgFEDORA-2021-78b9d84299https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5LVY4WIWTVVYKQMROJJS365TZBKEARCF/vendor-advisoryx_refsource_FEDORA
• lists.fedoraproject.orgFEDORA-2021-6225d60814https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QW4R2K5HVJ4R6XDZYOJCCFPIN2XHNS3L/vendor-advisoryx_refsource_FEDORA
• lists.fedoraproject.orgFEDORA-2021-02b301441fhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IPJPUSAWIJMQFBQQQYXAICLI4EKFQOH6/vendor-advisoryx_refsource_FEDORA