// For flags

CVE-2025-9184

 

Severity Score

8.1
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Track*
*SSVC
Descriptions

Memory safety bugs present in Firefox ESR 140.1, Thunderbird ESR 140.1, Firefox 141 and Thunderbird 141. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 142, Firefox ESR < 140.2, Thunderbird < 142, and Thunderbird < 140.2.

*Credits: Paul Bone, Ryan VanderMeulen and the Mozilla Fuzzing Team
CVSS Scores
Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Network
Attack Complexity
High
Authentication
None
Confidentiality
Complete
Integrity
Complete
Availability
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:Track*
Exploitation
None
Automatable
No
Tech. Impact
Total
* Organization's Worst-case Scenario
Timeline
  • 2025-08-19 CVE Reserved
  • 2025-08-19 CVE Published
  • 2025-08-20 EPSS Updated
  • 2025-08-21 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Mozilla
Search vendor "Mozilla"
 Firefox
Search vendor "Mozilla" for product "Firefox"
*-
Affected
Mozilla
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 Firefox Esr
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*-
Affected
Mozilla
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 Thunderbird
Search vendor "Mozilla" for product "Thunderbird"
*-
Affected
Canonical
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 Ubuntu Linux
Search vendor "Canonical" for product "Ubuntu Linux"
*-
Affected
Fedoraproject
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 Fedora
Search vendor "Fedoraproject" for product "Fedora"
*-
Affected
Slackware
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 Slackware Linux
Search vendor "Slackware" for product "Slackware Linux"
*-
Affected