Search/CVE-2025-14322
● CVE — High

CVE-2025-14322

VendormozillaProductfirefox, thunderbirdDiscoveredDec 9, 2025UpdatedOct 7, 2026

Sandbox escape due to incorrect boundary conditions in the Graphics: CanvasWebGL component. This vulnerability was fixed in Firefox 146, Firefox ESR 115.31, Firefox ESR 140.6, Thunderbird 146, and Thunderbird 140.6.

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CVSS v3.1
8 HIGH
EPSS
0.34%
probability of exploitation in 30 days
CISA KEV
Not listed
no confirmed exploitation reported
News coverage
0
sources referencing this CVE
Related IOCs
0
seen in the same coverage
EPSS Trend
Aug 16, 2026 → Sep 5, 2026
● 0.01pp
0.33% → 0.34% over 2 tracked changes
CVSS v3.1 Detail
Attack VectorNETWORK
Attack ComplexityHIGH
Privileges RequiredNONE
User InteractionREQUIRED
ScopeCHANGED
ConfidentialityHIGH
IntegrityHIGH
AvailabilityNONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:N
Connections
3 relationships
Timeline
disclosure → media coverage
Dec 9, 2025
Disclosure — published as a CVE record. · last revised by NVD Oct 7, 2026