Which products and versions are affected by CVE-2021-37976?

Affected: Chrome (Google) versions >= unspecified; Debian Linux versions 10.0, 11.0; Fedora (Fedoraproject) versions 33, 34, 35, among others. The full list is in the CVE brief.

Is CVE-2021-37976 being exploited in the wild?

It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Sep 21, 2021.

Is CVE-2021-37976 in the CISA KEV catalog?

Yes. It was added on Nov 3, 2021 with a federal remediation due date of Nov 17, 2021.

Is there a public exploit for CVE-2021-37976?

Public exploit code is available.

Is there a fix for CVE-2021-37976?

Fixed versions are available, including Chrome 94.0.4606.71, chromedriver 94.0.4606.71-1.1, chromedriver 94.0.4606.71-bp153.2.31.1.

How urgently should CVE-2021-37976 be patched?

Brandefense priority: patch immediately, because it is listed as exploited in the wild.

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Vulnerability Intelligence

CVE-2021-37976

MediumExploitedPublic exploit

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.

Published Dec 15, 2021 · Updated Aug 4, 2026 · Also known as DEBIAN-CVE-2021-37976, UBUNTU-CVE-2021-37976

Key Facts

Patch immediately

CVE-2021-37976 is a medium-severity vulnerability (CVSS 6.5 v3.1) affecting Chrome (Google), Debian Linux, Fedora (Fedoraproject) and 7 more products.
It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Sep 21, 2021. Public exploit code is available.
EPSS estimates a 20% probability of exploitation in the next 30 days.
Fixed versions are available, including Chrome 94.0.4606.71, chromedriver 94.0.4606.71-1.1, chromedriver 94.0.4606.71-bp153.2.31.1.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.

CVSS v3.1

6.5

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

EPSS (30-day exploit likelihood)

20%

Higher than 97.3% of all scored CVEs

Exploited in the wild

Yes

4 catalog listings

Public exploit code

Available

Proof-of-concept or weaponized module

Get the full CVE-2021-37976 brief as a PDF

Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.

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.

Known-Exploited Catalog Listings

Catalog	Added	Remediation due	Ransomware use
CISA KEV	Nov 3, 2021	Nov 17, 2021	Not reported
Industry KEV feed	Sep 21, 2021	Nov 17, 2021	Not reported
CIRCL KEV	Nov 3, 2021	Nov 17, 2021	Not reported
ENISA EUVD	Nov 3, 2021	n/a	Not reported

Required action: Apply updates per vendor instructions.

Affected Products

35 affected entries in total

Product	Affected versions	Fixed in
ChromeGoogle	>= unspecified	94.0.4606.71
Debian LinuxDebian	10.0, 11.0	n/a
FedoraFedoraproject	33, 34, 35	n/a
chromiumarch	See advisory	94.0.4606.71-1
operaarch	See advisory	80.0.4170.16-1

5 more affected products in the full CVE brief

Patched Releases

Chrome

94.0.4606.71

chromedriver

94.0.4606.71-1.1, 94.0.4606.71-bp153.2.31.1, 94.0.4606.81-lp152.2.132.1

chromium

94.0.4606.71-1, 94.0.4606.71-1.1, 94.0.4606.71-bp153.2.31.1, 94.0.4606.81-lp152.2.132.1, 97.0.4692.71-0.1, 97.0.4692.71-0.1~deb11u1

chromium-browser

94.0.4606.71-0ubuntu0.18.04.1

opera

80.0.4170.16-1, 80.0.4170.16-lp153.2.24.1, 80.0.4170.63-lp152.2.73.1, 80.0.4170.63-lp153.2.27.1, 85.0.4341.28-lp154.2.5.1

ungoogled-chromium

113.0.5672.92-1.1

ungoogled-chromium-chromedriver

113.0.5672.92-1.1

vivaldi

4.2.2406.54-1

Timeline

Added to Industry KEV feed
Sep 21, 2021
Added to CISA KEV
Nov 3, 2021
Added to CIRCL KEV
Nov 3, 2021
Added to ENISA EUVD
Nov 3, 2021
Publicly disclosed
Dec 15, 2021
Last updated
Aug 4, 2026

Weakness Type

CWE-862 Missing Authorization

References

advisoryhttps://chromereleases.googleblog.com/2021/09/stable-channel-update-for-desktop_30.html
advisoryhttps://chromereleases.googleblog.com/2021/12/stable-channel-update-for-desktop_13.html
advisoryhttps://crbug.com/1245578
advisoryhttps://crbug.com/1251787
advisoryhttps://crbug.com/1252918

15 more references in the full CVE brief

FAQ

Common Questions.

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.
Affected: Chrome (Google) versions >= unspecified; Debian Linux versions 10.0, 11.0; Fedora (Fedoraproject) versions 33, 34, 35, among others. The full list is in the CVE brief.
It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Sep 21, 2021.
Yes. It was added on Nov 3, 2021 with a federal remediation due date of Nov 17, 2021.
Public exploit code is available.
Fixed versions are available, including Chrome 94.0.4606.71, chromedriver 94.0.4606.71-1.1, chromedriver 94.0.4606.71-bp153.2.31.1.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.

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