CVE-2025-1014: Certificate length was not properly checked

Published Feb 4, 2025
·
Updated

Certificate length was not properly checked when added to a certificate store. In practice only trusted data was processed.

Affected Software

11 affected componentsFixes available
debian/firefox
135.0-1
debian/firefox-esr<=115.14.0esr-1~deb11u1, <=128.5.0esr-1~deb12u1
128.7.0esr-1~deb11u1128.7.0esr-1~deb12u1128.7.0esr-1
debian/thunderbird<=1:115.12.0-1~deb11u1, <=1:128.5.0esr-1~deb12u1, <=1:128.6.0esr-1
1:128.7.0esr-1~deb11u11:128.7.0esr-1~deb12u1
Mozilla Thunderbird<128.7
128.7
Mozilla Firefox<128.7.0
Mozilla Firefox<135.0
Mozilla Thunderbird>=128.0.1<128.7.0
Mozilla Thunderbird>=131.0<135.0
Mozilla Firefox<135
135
Mozilla Firefox ESR<128.7
128.7
Mozilla Thunderbird<135
135

Event History

Feb 4, 2025
CVE Published
via Mozilla·12:00 AM
CVE Published
via MITRE·01:58 PM
Data Sourced
via MITRE·01:58 PM
Description
Data Sourced
via NVD·02:15 PM
DescriptionSeverityWeaknessAffected Software
Data Sourced
via Red Hat·03:02 PM
DescriptionSeverityAffected Software
Feb 11, 2025
Data Sourced
via Ubuntu·05:04 AM
RemedyDescriptionSeverityAffected Software

Parent advisories

This vulnerability appears in the following advisories.

Frequently Asked Questions

1

What is the severity of CVE-2025-1014?

CVE-2025-1014 is rated as a moderate severity vulnerability due to improper length checks of certificates.

2

How do I fix CVE-2025-1014?

To fix CVE-2025-1014, update to Firefox versions 135 or later and Thunderbird versions 128.7 or later.

3

Which products are affected by CVE-2025-1014?

CVE-2025-1014 affects Firefox versions below 135, Thunderbird versions below 128.7, and their respective ESR versions.

4

What kind of data is affected by CVE-2025-1014?

CVE-2025-1014 impacts certificates added to a certificate store due to inadequate length checks.

5

Is CVE-2025-1014 actively exploited?

As of the latest updates, CVE-2025-1014 has not been reported as actively exploited in the wild.

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2026 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203