CVE-2021-21144

critical
Published — · Modified —
CVSS v3
CVSS v2
VIR risk
9.5

Description

Heap buffer overflow in Tab Groups in Google Chrome prior to 88.0.4324.146 allowed an attacker who convinced a user to install a malicious extension to potentially exploit heap corruption via a crafted Chrome Extension.

Predictions

Exploit likelihood
20%
Patch ETA

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

vendor Authored 2026-05-27

Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2021-21144

vendor Authored 2026-05-27

Vendor advisory: arch — https://security.archlinux.org/ASA-202102-6

vendor Authored 2026-05-27

Vendor advisory: arch — https://security.archlinux.org/ASA-202102-4

OS impact

OSVersionStatusFixed in
arch archfixed3.6.2165.36-1
debian debianbookwormfixed88.0.4324.146-1
debian debianbullseyefixed88.0.4324.146-1
debian debianforkyfixed88.0.4324.146-1
debian debiansidfixed88.0.4324.146-1
debian debiantrixiefixed88.0.4324.146-1

References

Verify integrity in audit chain (admin only). AS-IS.