CVE-2025-1018

EUVD-2025-1973
The fullscreen notification is prematurely hidden when fullscreen is re-requested quickly by the user. This could have been leveraged to perform a potential spoofing attack. This vulnerability was fixed in Firefox 135 and Thunderbird 135.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
5.3 MEDIUM
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 34.73%
Affected Products (NVD)
VendorProductVersion
mozillafirefox
𝑥
< 135.0
mozillathunderbird
131.0 ≤
𝑥
< 135.0
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
firefox
sid
155.0-1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
mozjs52
bionic
ignored
focal
needs-triage
jammy
dne
noble
dne
oracular
dne
plucky
dne
questing
dne
resolute
dne
firefox
focal
Fixed 135.0+build2-0ubuntu0.20.04.1
released
jammy
not-affected
noble
not-affected
oracular
not-affected
plucky
not-affected
questing
not-affected
resolute
not-affected
mozjs102
focal
dne
jammy
ignored
noble
ignored
oracular
dne
plucky
dne
questing
dne
resolute
dne
mozjs115
focal
dne
jammy
dne
noble
ignored
oracular
ignored
plucky
ignored
questing
dne
resolute
dne
mozjs38
bionic
needs-triage
focal
dne
jammy
dne
noble
dne
oracular
dne
plucky
dne
questing
dne
resolute
dne
mozjs68
focal
ignored
jammy
dne
noble
dne
oracular
dne
plucky
dne
questing
dne
resolute
dne
mozjs78
focal
dne
jammy
ignored
noble
dne
oracular
dne
plucky
dne
questing
dne
resolute
dne
mozjs91
focal
dne
jammy
ignored
noble
dne
oracular
dne
plucky
dne
questing
dne
resolute
dne
thunderbird
focal
dne
jammy
Fixed 1:140.7.1+build1-0ubuntu0.22.04.1
released
noble
not-affected
oracular
not-affected
plucky
not-affected
questing
not-affected
resolute
not-affected
Common Weakness Enumeration
References
https://bugzilla.mozilla.org/show_bug.cgi?id=1910818
https://www.mozilla.org/security/advisories/mfsa2025-07/
https://www.mozilla.org/security/advisories/mfsa2025-11/