CVE-2021-37976

Google Chromium: Information Disclosure

As of , CVE-2021-37976 in Google Chromium is on CISA's list of exploited vulnerabilities: CISA listed it on . Our patch-first group: Patch soon.

Exploited
Yes: CISA listed it on 3 November 2021
US federal deadline
17 November 202114 days after CISA listed it. US federal civilian agencies must fix it by then.
Used in ransomware campaigns
Not known to CISA
EPSS score
0.20Higher than 97% of the CVEs EPSS scores. EPSS estimates the chance of exploitation activity in the next 30 days.
EPSS when listed
Not availableCISA listed it before 4 February 2022, where the EPSS files we read begin.
Public exploit
None foundNeither Metasploit nor Exploit-DB lists one.
Fix
No vendor link in CISA's entry

What CISA says to do

Apply updates per vendor instructions.

CISA's required action

What the flaw is

Google Chromium contains an information disclosure vulnerability within the core memory component that allows a remote attacker to obtain potentially sensitive information from process memory via a crafted HTML page. This vulnerability could affect multiple web browsers that utilize Chromium, including, but not limited to, Google Chrome, Microsoft Edge, and Opera.

CISA's description

Inappropriate implementation in Memory in Google Chrome prior to 94.0.4606.71 allowed a remote attacker to obtain potentially sensitive information from process memory via a crafted HTML page.

The CVE record's description, from Chrome

CVE published
8 October 2021
Assigned by
Chrome
CVSS
6.5 Medium (CVSS 3.1, from CISA-ADP)
CWE-862
Missing Authorization
CISA SSVC, exploitation
active
CISA SSVC, automatable
no
CISA SSVC, technical impact
partial

Timeline

  1. The CVE record was published.
  2. CISA added it to its list of exploited vulnerabilities.
  3. The US federal deadline to fix it.

Chromium: other exploited entries

VulnerabilityProductOur groupListedDeadlineEPSS
CVE-2026-2441CSS Use-After-FreeGoogle ChromiumPatch this weekEPSS 0.550.55
CVE-2025-14174Out of Bounds Memory AccessGoogle ChromiumPatch soon0.22
CVE-2021-21166Race ConditionGoogle ChromiumPatch soon0.24
CVE-2025-6558ANGLE and GPU Improper Input ValidationGoogle ChromiumPatch soon0.09
CVE-2024-4671Visuals Use-After-FreeGoogle ChromiumPatch soon0.08

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