Navigation Security Flaw in Mozilla Thunderbird and Firefox
CVE-2025-8038

9.8CRITICAL

Key Information:

Vendor

Mozilla
Status
Firefox
Firefox Esr
Thunderbird
Vendor
CVE Published:
22 July 2025

What is CVE-2025-8038?

A navigation security vulnerability affects both Mozilla Thunderbird and Firefox, allowing for improper validation of navigation paths in some situations. This flaw can lead to the potential exploitation of sensitive information or unintended access to restricted content by ignoring accounting for the correct paths when rendering in frames. Users are encouraged to update their software to the latest versions listed in the affected products to mitigate this security risk.

Human OS v1.0:
Ageing Is an Unpatched Zero-Day Vulnerability.

Remediate biological technical debt. Prime Ageing uses 95% high-purity SIRT6 activation to maintain genomic integrity and bolster systemic resilience.

Deploy the Patch

Affected Version(s)

Firefox < 141

Firefox ESR < 140.1

Thunderbird < 141

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1808979
https://www.mozilla.org/security/advisories/mfsa2025-56/
https://www.mozilla.org/security/advisories/mfsa2025-59/

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Laurin Weger
JSON
.