CVE-2021-21148

HIGHCISA KEV

Google Chromium V8 Heap Buffer Overflow Vulnerability

Title source: CISA
Search associated code STIX 2.1 vulnerability STIX 2.1 with PoCs

Record summary

CVE-2021-21148 has a selected CVSS score of 8.8 (high); EIP currently links 1 repository PoC. CISA lists CVE-2021-21148 in KEV.

Description

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.

Description source: CVE List

Exploitation context

Known exploitation

CISA KEV
Listed · Nov 3, 2021 · CISA
VulnCheck KEV
Listed · Jan 24, 2021 · VulnCheck
Reported exploitation
Observed · VulnCheck

Available material

Repository PoCs
1

CISA SSVC decision

ExploitationActive
AutomatableNo
Technical impactTotal

CISA Coordinator · SSVC 2.0.3 · Evaluated Jan 29, 2025 · Source: CVE List

Affected products and versions

2
ProductSourceVersion range

Chrome

Browse Google / Chrome
CVE ListBefore 88.0.4324.150affected

Chromium V8

Browse Google / Chromium V8
CISAVersion data not supplied

Proofs of concept

1

Repository PoCs

GitHubGrayhaxor/CVE-2021-21148Repository PoCby Grayhaxor2Not analyzed1 file

46 B

GitHub
PoC details

References

11