CVE-2021-21200 json
Out of bounds read in WebUI Settings in Google Chrome prior to 89.0.4389.72 allowed a remote attacker to perform an out of bounds memory re…
published 2023-01-02 3 y ago modified 2026-06-17 4 mo ago also EUVD-2021-8591
- cvss
- 5.4
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 40%
- public exploits
- 0
- none known
Summary
Out of bounds read in WebUI Settings in Google Chrome prior to 89.0.4389.72 allowed a remote attacker to perform an out of bounds memory read via a crafted HTML page. (Chrome security severity: Low)
Patch / fix
- Google Chrome 89.0.4389.72
- chromium Debian 14, Debian 13, Debian 12 89.0.4389.82-1
debian advisories DEBIAN-CVE-2021-21200
- chromium-browser Ubuntu 18.04 LTS 89.0.4389.82-0ubuntu0.18.04.1
ubuntu advisories UBUNTU-CVE-2021-21200
Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0
Vendor advisories
What the vendors themselves say about their products: affected, fixed or not affected, and what to do.
red hat product security vex CVE-2021-21200 updated cvss 8.8
chromium-browser: Inappropriate implementation in Settings
-
Red Hat All currently supported Red Hat productsnot affected: vulnerable code not present
Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 2 y ago
Exploit prediction
0.46% chance of exploitation in the next 30 days, higher than 40% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- crbug.com https://crbug.com/1164816 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 5.4 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L |
Affected products
- Google Chrome
Classification
- Weakness
-
- CWE-125 Out-of-bounds Read
- Technology feeds
References
-
crbug.com
/1164816
exploit, issue-tracking, vendor-advisory
-
chromereleases.googleblog.com
/2021/03/stable-channel-update-for-desktop.html
release-notes, vendor-advisory
Sources
- CVE List CVE-2021-21200
- NVD CVE-2021-21200
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.