CVE-2021-21208

high

Published — · Modified —

CVSS v3

—

CVSS v2

—

VIR risk

8.0

Description

Insufficient data validation in QR scanner in Google Chrome on iOS prior to 90.0.4430.72 allowed an attacker displaying a QR code to perform domain spoofing via a crafted QR code.

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-2021-21208

OS impact

OS	Version	Status	Fixed in
arch		fixed	`90.0.4430.72-1`
debian	bookworm	fixed	`90.0.4430.72-1`
debian	bullseye	fixed	`90.0.4430.72-1`
debian	forky	fixed	`90.0.4430.72-1`
debian	sid	fixed	`90.0.4430.72-1`
debian	trixie	fixed	`90.0.4430.72-1`

References

https://security-tracker.debian.org/tracker/CVE-2021-21208

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