CVE-2021-23962: High severity firefox vulnerability

Published Jan 26, 2021
·
Updated

Incorrect use of the '<RowCountChanged>' method could have led to a user-after-poison and a potentially exploitable crash. This vulnerability affects Firefox < 85.

Other sources

Incorrect use of the RowCountChanged method could have led to a user-after-poison and a potentially exploitable crash.

Mozilla

Affected Software

2 affected componentsFixes available
Mozilla Firefox<85
85
Mozilla Firefox<85.0

Event History

Jan 26, 2021
CVE Published
12:00 AM
Feb 26, 2021
CVE Published
via MITRE·02:02 AM
Data Sourced
via MITRE·02:02 AM
DescriptionWeakness

Parent advisories

This vulnerability appears in the following advisories.

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Frequently Asked Questions

1

What is the severity of CVE-2021-23962?

CVE-2021-23962 is considered a moderate severity vulnerability due to the possibility of user-after-poison leading to an exploitable crash.

2

How do I fix CVE-2021-23962?

To fix CVE-2021-23962, update your Firefox to version 85 or later.

3

What versions of Firefox are affected by CVE-2021-23962?

CVE-2021-23962 affects Firefox versions prior to 85.

4

What type of vulnerability is CVE-2021-23962?

CVE-2021-23962 is a user-after-poison vulnerability related to incorrect use of the '<RowCountChanged>' method.

5

Can CVE-2021-23962 be exploited remotely?

While CVE-2021-23962 could lead to a crash, exploitation depends on specific conditions, making it less likely to be exploited remotely.

Contact

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