Description
Undefined behavior in the WebRTC: Signaling component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.
References (5)
Core 5
Scores
CVSS v3
8.1
EPSS
0.0001
EPSS Percentile
2.3%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
total
Details
CWE
CWE-758
Status
published
Products (12)
mozilla/firefox
< 140.9.0
mozilla/firefox
< 149.0
Mozilla/Firefox
140.9 - 140.*
Mozilla/Firefox
149
Mozilla/Firefox
unspecified - 149
Mozilla/Firefox ESR
unspecified - 140.9
mozilla/thunderbird
< 140.9.0
mozilla/thunderbird
< 149.0
Mozilla/Thunderbird
140.9 - 140.*
Mozilla/Thunderbird
149
... and 2 more
Published
Mar 24, 2026
Tracked Since
Mar 24, 2026