CVE-2025-8037 (GCVE-0-2025-8037)
Vulnerability from cvelistv5 – Published: 2025-07-22 20:49 – Updated: 2026-07-29 14:55
VLAI
EPSS
VEX
Title
Nameless cookies shadow secure cookies
Summary
Setting a nameless cookie with an equals sign in the value shadowed other cookies. Even if the nameless cookie was set over HTTP and the shadowed cookie included the `Secure` attribute. This vulnerability was fixed in Firefox 141, Firefox ESR 140.1, Thunderbird 141, and Thunderbird 140.1.
Severity
9.1 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-07-23 14:22 UTC
CWE
- CWE-614 - Sensitive Cookie in HTTPS Session Without 'Secure' Attribute
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
140.1 , ≤ 140.*
(rpm)
Unaffected: 141 , ≤ * (rpm) |
guessed | |
| Mozilla | Thunderbird |
Unaffected:
140.1 , ≤ 140.*
(rpm)
Unaffected: 141 , ≤ * (rpm) |
guessed |
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},
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| Author | Source | Type | Date | Other |
|---|
Nomenclature
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