Search/CVE-2025-14861
● CVE — High

CVE-2025-14861

VendormozillaProductfirefoxDiscoveredDec 18, 2025UpdatedOct 5, 2026

Memory safety bugs present in Firefox 146. 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 was fixed in Firefox 146.0.1.

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CVSS v3.1
8.8 HIGH
EPSS
0.25%
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 14, 2026
● 0.00pp
0.25% → 0.25% over 3 tracked changes
CVSS v3.1 Detail
Attack VectorNETWORK
Attack ComplexityLOW
Privileges RequiredNONE
User InteractionREQUIRED
ScopeUNCHANGED
ConfidentialityHIGH
IntegrityHIGH
AvailabilityHIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Connections
2 relationships
Timeline
disclosure → media coverage
Dec 18, 2025
Disclosure — published as a CVE record. · last revised by NVD Oct 5, 2026