Vulnerability Details : CVE-2021-4320

Use after free in Blink in Google Chrome prior to 92.0.4515.107 allowed a remote attacker who had compromised the renderer process to perform arbitrary read/write via a crafted HTML page. (Chromium security severity: High)
Published 2023-07-29 00:15:10
Updated 2023-08-12 06:15:11
Source Chrome
View at NVD,   CVE.org
Vulnerability category: Memory Corruption

Exploit prediction scoring system (EPSS) score for CVE-2021-4320

EPSS FAQ
0.17%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 55 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2021-4320

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
8.8
 HIGH CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
2.8
5.9
 NIST

CWE ids for CVE-2021-4320

  • The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.
    Assigned by: nvd@nist.gov (Primary)

References for CVE-2021-4320

Products affected by CVE-2021-4320

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