Vulnerability Details : CVE-2021-37973

Use after free in Portals in Google Chrome prior to 94.0.4606.61 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page.
Vulnerability category: Memory Corruption
Published 2021-10-08 22:15:08
Updated 2022-03-30 14:17:31
Source Chrome
View at NVD,   CVE.org
CVE-2021-37973 is in the CISA Known Exploited Vulnerabilities Catalog
CISA vulnerability name:
Google Chromium Use-After-Free Vulnerability
CISA required action:
Apply updates per vendor instructions.
CISA description:
Google Chromium Portals contains a use-after-free vulnerability that allows a remote attacker, who had compromised the renderer process, to potentially perform a sandbox escape via a crafted HTML page. This vulnerability affects web browsers that utilize Chromium, including Google Chrome and Microso
Added on 2021-11-03 Action due date 2021-11-17

Exploit prediction scoring system (EPSS) score for CVE-2021-37973

Probability of exploitation activity in the next 30 days: 0.56%

Percentile, the proportion of vulnerabilities that are scored at or less: ~ 75 % EPSS Score History EPSS FAQ

CVSS scores for CVE-2021-37973

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Source
6.8
 MEDIUM AV:N/AC:M/Au:N/C:P/I:P/A:P
8.6
6.4
 nvd@nist.gov
9.6
 CRITICAL CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
2.8
6.0
 nvd@nist.gov

CWE ids for CVE-2021-37973

  • Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code.
    Assigned by: nvd@nist.gov (Primary)

References for CVE-2021-37973

Products affected by CVE-2021-37973

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