Fullscreen notification is not displayed when fullscreen is re-requested
Published Feb 4, 2025
7.3
HIGHCVSS 3.1
EPSS 0.42%
Description
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.
Affected products
No data.
- < 135.0
- ≥ 131.0 · < 135.0
No data.
Red Hat Enterprise Linux 10
thunderbird
Fix deferred
Red Hat Enterprise Linux 10
thunderbird-flatpak-container
Fix deferred
Red Hat Enterprise Linux 6
thunderbird
Fix deferred
Red Hat Enterprise Linux 7
thunderbird
Fix deferred
Red Hat Enterprise Linux 8
thunderbird
Fix deferred
Red Hat Enterprise Linux 9
thunderbird
Fix deferred
Red Hat Enterprise Linux 9
thunderbird-flatpak-container
Fix deferred
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 10 | thunderbird | Fix deferred | n/a |
| Red Hat Enterprise Linux 10 | thunderbird-flatpak-container | Fix deferred | n/a |
| Red Hat Enterprise Linux 6 | thunderbird | Fix deferred | n/a |
| Red Hat Enterprise Linux 7 | thunderbird | Fix deferred | n/a |
| Red Hat Enterprise Linux 8 | thunderbird | Fix deferred | n/a |
| Red Hat Enterprise Linux 9 | thunderbird | Fix deferred | n/a |
| Red Hat Enterprise Linux 9 | thunderbird-flatpak-container | Fix deferred | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
Red Hat Product Security rates the severity of this flaw as determined by the Mozilla Foundation Security Advisory.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
2 other sources (CISA ADP, Red Hat) ▾
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
No CVSS v3.0 score for this CVE.
No CVSS v2.0 score for this CVE.
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
NoneAutomatable
YesTechnical Impact
PartialDecision
n/aAssessed Feb 5, 2025 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2025–2026- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (4 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.42% (0.00416) | 33.55th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.38% (0.00384) | 30.00th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.06% (0.00056) | 14.84th | v4 (v2025.03.14) |
| Feb 5, 2025 | 0.04% (0.00045) | 17.83th | v3 (v2023.03.01) |
References (7)
- https://access.redhat.com/security/cve/CVE-2025-1018 Vendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1910818 Permissions Required
- https://bugzilla.redhat.com/show_bug.cgi?id=2343751 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2025-1018
- https://www.cve.org/CVERecord?id=CVE-2025-1018
- https://www.mozilla.org/security/advisories/mfsa2025-07/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2025-11/ Vendor Advisory
| Link | Providers | Tags |
|---|---|---|
| https://access.redhat.com/security/cve/CVE-2025-1018 | Vendor Advisory | |
| https://bugzilla.mozilla.org/show_bug.cgi?id=1910818 | Permissions Required | |
| https://bugzilla.redhat.com/show_bug.cgi?id=2343751 | Issue Tracking | |
| https://nvd.nist.gov/vuln/detail/CVE-2025-1018 | ||
| https://www.cve.org/CVERecord?id=CVE-2025-1018 | ||
| https://www.mozilla.org/security/advisories/mfsa2025-07/ | Vendor Advisory | |
| https://www.mozilla.org/security/advisories/mfsa2025-11/ | Vendor Advisory |
Change history (0)
No recorded changes yet.