MFSA2025-31: Security Vulnerabilities fixed in Thunderbird 138

Reference Links

• https://www.mozilla.org/en-US/security/advisories/mfsa2025-31/ (Advisory)

Child vulnerabilities

(Contains the following vulnerabilities)

• CVE-2025-2817

Frequently Asked Questions

• What is the severity of MFSA2025-31?

  The severity of MFSA2025-31 is categorized as moderate due to the potential risks associated with the identified security vulnerabilities.

• How do I fix MFSA2025-31?

  To fix MFSA2025-31, update Thunderbird to version 138 or later as this version includes the necessary security patches.

• What security vulnerabilities are addressed in MFSA2025-31?

  MFSA2025-31 addresses multiple security vulnerabilities that could potentially allow for unauthorized access and exploitation in Thunderbird.

• Who is affected by MFSA2025-31?

  Users of Thunderbird versions prior to 138 are affected by MFSA2025-31 and should upgrade to the latest version.

• What should I do if I cannot upgrade to Thunderbird 138 to resolve MFSA2025-31?

  If you cannot upgrade to Thunderbird 138, you should consider alternative email clients or apply relevant security measures until the update is possible.