CVE-2021-30606

Published: Sep 3, 2021Modified: Jun 17, 2026

8.8

Vector

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

Exploitability: 2.8 / Impact: 5.9

Source: NVD

Description

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

Affected (3)

Products: Microsoft: Edge, Edge Chromium · Fedoraproject: Fedora

2 products

1 product

Configuration A

2 vulnerable

Vulnerable Software	Affected Versions
Microsoft Edge	Up to 93.0.961.38
Microsoft Edge Chromium	Up to 93.0.4577.63

Configuration B

1 vulnerable

Vulnerable Software	Affected Versions
Fedoraproject Fedora	Version 35

Related CWEs

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

References (4)

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IPJPUSAWIJMQFBQQQYXAICLI4EKFQOH6/

Source: chrome-cve-admin@google.com

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-30606

Source: chrome-cve-admin@google.com

PatchVendor Advisory

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IPJPUSAWIJMQFBQQQYXAICLI4EKFQOH6/

Source: af854a3a-2127-422b-91ae-364da2661108

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-30606

Source: af854a3a-2127-422b-91ae-364da2661108

PatchVendor Advisory

Timeline

No history available yet.