TI-2021-04252 Aliases CVE-2021-21148 GHSA-6675-f3rx-hqr9

Out-of-bounds write in Google Chrome

CRITICAL 97Exploited in the wildCWE-787Published 2021-02-09 · Updated 2025-10-21

Key facts

Attack vector: Network
Privileges required: None
User interaction: Required
Attack complexity: Low
Impact type: Code execution
Confidentiality · integrity · availability: High · High · High
Fix status: Fixed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-787 and the CVSS impact.

Summary

Heap buffer overflow in V8 in Google Chrome prior to 88.0.4324.150 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

Why it matters now

Exploitation Active In CISA KEV since 2021-11-03CISA due date 2021-11-17

EPSS 0.19968 97th percentileScored 2026-11-07

Fix Fixed Chrome (Google): 88.0.4324.150

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Active
Automatable: No
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Google	Chrome	before 88.0.4324.150	88.0.4324.150	Patch available	CNA

Chrome VendorGoogle Affected before 88.0.4324.150 Fixed in 88.0.4324.150 Patch available CNA

CPE configurations NVD · 4

CPE	Versions	Role	Vendor
cpe:2.3:a:google:chrome::::::::	before 88.0.4324.150	Vulnerable	Google
cpe:2.3:o:fedoraproject:fedora:32:::::::*	32	Vulnerable	Fedoraproject
cpe:2.3:o:fedoraproject:fedora:33:::::::*	33	Vulnerable	Fedoraproject
cpe:2.3:o:debian:debian_linux:10.0:::::::*	10.0	Vulnerable	Debian

cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:* Versions before 88.0.4324.150 Vulnerable ·Google
cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:* Versions 32 Vulnerable ·Fedoraproject
cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* Versions 33 Vulnerable ·Fedoraproject
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* Versions 10.0 Vulnerable ·Debian

Remediation

Fix · CNA Chrome (Google) Fixed in 88.0.4324.150

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

Advisory · 2021-02-09
Google Chrome — FEDORA-2021-7fb30b9381
7 records Highest priority Priority CRITICAL 1 CRITICAL, 5 MEDIUM, 1 LOW
Other records, highest priority first
- TI-2021-04250 Use after free in Google ChromePriority MEDIUM 44
- TI-2021-04246 Use after free in Google ChromePriority MEDIUM 43
- TI-2021-04249 Use after free in Google ChromePriority MEDIUM 40
Show all 7 records → Advisory →
Advisory · 2021-02-09
Google Chrome — FEDORA-2021-05afa65d39
7 records Highest priority Priority CRITICAL 1 CRITICAL, 5 MEDIUM, 1 LOW
Other records, highest priority first
- TI-2021-04250 Use after free in Google ChromePriority MEDIUM 44
- TI-2021-04246 Use after free in Google ChromePriority MEDIUM 43
- TI-2021-04249 Use after free in Google ChromePriority MEDIUM 40
Show all 7 records → Advisory →

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product

Red Hat

Timeline

2021-11-03 Added to CISA KEV
2026-10-02 Threatist record created from CVE-2021-21148
2026-10-03 Alias added: GHSA-6675-f3rx-hqr9

References

Advisory 5

Other 2

TI-2025-09686 Type confusion in Google Chrome KEVCVSS 3.1CRITICAL 9.8
TI-2024-07390 Type confusion in Google Chrome KEVCVSS 3.1CRITICAL 9.6
TI-2024-04898 Type confusion in Google Chrome KEVCVSS 3.1CRITICAL 9.6
TI-2024-04600 Type confusion in Google Chrome KEVCVSS 3.1CRITICAL 9.6
TI-2024-04346 Use after free in Google Chrome KEVCVSS 3.1CRITICAL 9.6
TI-2023-05824 Integer overflow in Google Chrome KEVCVSS 3.1CRITICAL 9.6

See all 7586 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences