MFSA2021-08: Security Vulnerabilities fixed in Firefox ESR 78.8

Published Feb 23, 2021
·
Updated

Security Vulnerabilities fixed in Firefox ESR 78.8

Affected Software

1 affected componentFixes available
Mozilla Firefox ESR<78.8
78.8

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 78.8
  2. Upgrade

    Upgrade Mozilla Firefox ESR to a version that resolves this vulnerability.

    Fixed in 78.8

Event History

Feb 23, 2021
Advisory Published
via Mozilla·12:00 AM

Child vulnerabilities

Contains the following vulnerabilities.

Frequently Asked Questions

1

What is the severity of MFSA2021-08?

The severity of MFSA2021-08 is categorized as critical due to multiple security vulnerabilities in Firefox ESR.

2

How do I fix MFSA2021-08?

To fix MFSA2021-08, update your Firefox ESR to version 78.8 or later immediately.

3

What versions of Firefox ESR are affected by MFSA2021-08?

Firefox ESR versions prior to 78.8 are affected by the vulnerabilities described in MFSA2021-08.

4

What types of vulnerabilities are reported in MFSA2021-08?

MFSA2021-08 includes several security vulnerabilities such as memory safety bugs that could lead to arbitrary code execution.

5

Is there a workaround for vulnerabilities in MFSA2021-08?

There are no recommended workarounds for the vulnerabilities described in MFSA2021-08; updating is essential for protection.

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