⚠ Actively exploited
Added to CISA KEV on 2021-11-03. Federal agencies required to patch by 2021-11-17. Required action: Apply updates per vendor instructions..

CVE-2021-37976 — Missing Authorization in Google Chrome

CWE-862 — Missing Authorization16 documents12 sources
Severity
6.5MEDIUMNVD
EPSS
7.7%
top 8.08%
CISA KEV
KEV
Added 2021-11-03
Due 2021-11-17
Exploit
Exploited in wild
Active exploitation observed
Affected products
7
Google ChromeChromiumDebian Chromium+4 more
Timeline
PublishedOct 8
KEV addedNov 3
KEV dueNov 17
Latest updateDec 3
CISA Required Action: Apply updates per vendor instructions.

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.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:NExploitability: 2.8 | Impact: 3.6

Affected Packages6 packages

▶CVEListV5google/chromeunspecified — 94.0.4606.71
▶NVDgoogle/chrome< 94.0.4606.71
▶debiandebian/chromium< chromium 97.0.4692.71-0.1 (bookworm)
▶Debianchromium/chromium< 97.0.4692.71-0.1~deb11u1+3

Also affects: Debian Linux 10.0, 11.0, Fedora 33, 34, 35

🔴Vulnerability Details

4
GHSA
GHSA-c9r9-7qcg-7h37: Inappropriate implementation in Memory in Google Chrome prior to 94↗2022-05-24
▶
Project0
The More You Know, The More You Know You Don’t Know - Project Zero↗2022-04-01
▶
OSV
CVE-2021-37976: Inappropriate implementation in Memory in Google Chrome prior to 94↗2021-10-08
▶
VulnCheck
Google Chromium Information Disclosure Vulnerability↗2021
▶

📋Vendor Advisories

4
CISA
Google Chromium Information Disclosure Vulnerability↗2021-11-03
▶
Microsoft
Chromium: CVE-2021-37976 Information leak in core↗2021-10-12
▶
Chrome
Stable Channel Update for Desktop: CVE-2021-37974↗2021-09-30
▶
Debian
CVE-2021-37976: chromium - Inappropriate implementation in Memory in Google Chrome prior to 94.0.4606.71 al...↗2021
▶

🕵️Threat Intelligence

7
Mandiant
Intellexa’s Prolific Zero-Day Exploits Continue↗2025-12-03
▶
Mandiant
Sanctioned but Still Spying: Intellexa’s Prolific Zero-Day Exploits Continue↗2025-12-03
▶
Talos
Mercenary mayhem: A technical analysis of Intellexa's PREDATOR spyware↗2023-05-25
▶
Talos
Mercenary mayhem: A technical analysis of Intellexa&#x27;s PREDATOR spyware↗2023-05-25
▶
Qualys
Managing CISA Known Exploited Vulnerabilities with Qualys VMDR | Qualys↗2022-02-23
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