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CVE-2021-21167: Chromium CVE-2021-21167: Use after free in bookmarks

CVE-2021-21167 is an edge - chromium vulnerability in Chromium CVE-2021-21167: Use after free in bookmarks. Microsoft has not reported exploitation in the wild. The EPSS model estimates a 1.38% probability of exploitation activity in the next 30 days, higher than 72% of all scored vulnerabilities. Microsoft released the fix on 4 March 2021 in the March 2021 Patch Tuesday. It affects 1 product in 1 product family (Browser).

Key facts

CVE ID
CVE-2021-21167
Severity
N/A
Impact
Edge - Chromium
Exploited in the wild
No
Publicly disclosed
No
Weakness
CWE-416
EPSS
1.38% (percentile 72%)
CISA KEV
Not listed
Released
Last updated
Patch Tuesday
March 2021 Patch Tuesday
Product families
Browser

Description

This CVE was assigned by Chrome. Microsoft Edge (Chromium-based) ingests Chromium, which addresses this vulnerability. Please see Google Chrome Releases for more information.

Frequently asked questions (Microsoft)

Why is this Chrome CVE included in the Security Update Guide?

The vulnerability assigned to this CVE is in Chromium Open Source Software (OSS) which is consumed by Microsoft Edge (Chromium-based). It is being documented in the Security Update Guide to announce that the latest version of Microsoft Edge (Chromium-based) is no longer vulnerable.

How can I see the version of the browser?

  • In your Microsoft Edge browser, click on the 3 dots (...) on the very right-hand side of the window
  • Click on Help and Feedback
  • Click on About Microsoft Edge

What is the version information for this release?

Microsoft Edge Version

Date Released

Based on Chromium Version

89.0.774.45

3/4/2021

89.0.4389.72

Affected products (1)

Browser

ProductSecurity updateTypeFixed buildRestart
Microsoft Edge (Chromium-based)Release NotesSecurity Update89.0.774.45No

NIST NVD data

NVD status
Modified
NVD CVSS
8.8 (HIGH)
NVD weakness
CWE-416
Published to NVD
NVD last modified

Affected configurations (CPE)

ProductVulnerable versions
chromebefore 89.0.4389.72
fedora 32all listed versions
fedora 33all listed versions
fedora 34all listed versions
debian linux 10.0all listed versions

References

Revision history

VersionDateDescription
1.0Information published.

Sources