CVE-2025-1018
published 2025-02-04CVE-2025-1018: The fullscreen notification is prematurely hidden when fullscreen is re-requested quickly by the user. This could have been leveraged to perform a potential…
PriorityP424medium5.3CVSS 3.1
AVNACLPRNUINSUCNILAN
EPSS
0.42%
35.7th percentile
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
6 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | firefox | < firefox 135.0-1 (sid) | firefox 135.0-1 (sid) |
| mozilla | firefox | < 135.0 | 135.0 |
| mozilla | firefox | — | — |
| mozilla | firefox | >= 0 < 135.0+build2-0ubuntu0.20.04.1 | 135.0+build2-0ubuntu0.20.04.1 |
| mozilla | thunderbird | >= 0 < 1:140.7.1+build1-0ubuntu0.22.04.1 | 1:140.7.1+build1-0ubuntu0.22.04.1 |
| mozilla | thunderbird | >= 131.0 < 135.0 | 135.0 |
CVSS provenance
nvdv3.15.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
osv9.8CRITICAL
vendor_ubuntu9.8CRITICAL
vendor_debian5.3MEDIUM
vendor_redhat5.3MEDIUM
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Ubuntu
Thunderbird vulnerabilities
vendor_ubuntu·2026-02-02
CVE-2025-8031 Thunderbird vulnerabilities
Title: Thunderbird vulnerabilities
Summary: Several security issues were fixed in Thunderbird.
Multiple security issues were discovered in Thunderbird. If a user were
tricked into opening a specially crafted website in a browsing context,
an attacker could potentially exploit these to cause a denial of service,
obtain sensitive information, bypass security restrictions, cross-site
tracing, or execute arbitrary code.
Instructions: In general, a standard system update will make all the necessary changes.
Ubuntu
Firefox vulnerabilities
vendor_ubuntu·2025-02-11·CVSS 9.8
CVE-2025-1016 [CRITICAL] Firefox vulnerabilities
Title: Firefox vulnerabilities
Summary: Several security issues were fixed in Firefox.
Multiple security issues were discovered in Firefox. If a user were
tricked into opening a specially crafted website, an attacker could
potentially exploit these to cause a denial of service, obtain sensitive
information across domains, or execute arbitrary code. (CVE-2025-1011,
CVE-2025-1013, CVE-2025-1014, CVE-2025-1016, CVE-2025-1017, CVE-2025-1018,
CVE-2025-1019, CVE-2025-1020)
Ivan Fratric discovered that Firefox did not properly handle XSLT data,
leading to a use-after-free vulnerability. An attacker could potentially
exploit this issue to cause a denial of service, or execute arbitrary code.
(CVE-2025-1009)
Atte Kettunen discovered that Firefox did not properly manage memory in
the Custom High
Red Hat
firefox: thunderbird: Fullscreen notification is not displayed when fullscreen is re-requested
vendor_redhat·2025-02-04·CVSS 5.3
CVE-2025-1018 [MEDIUM] CWE-451 firefox: thunderbird: Fullscreen notification is not displayed when fullscreen is re-requested
firefox: thunderbird: Fullscreen notification is not displayed when fullscreen is re-requested
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 affects Firefox < 135 and Thunderbird < 135.
A flaw was found in Firefox. The Mozilla Foundation's Security Advisory describes the following issue: 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.
Statement: Red Hat Product Security rates the severity of this flaw as determined by the Mozilla Foundation Security Advisory.
Package: thunderbird (Red Hat Enterprise Linux 10) - Fix de
Debian
CVE-2025-1018: firefox - The fullscreen notification is prematurely hidden when fullscreen is re-requeste...
vendor_debian·2025·CVSS 5.3
CVE-2025-1018 [MEDIUM] CVE-2025-1018: firefox - The fullscreen notification is prematurely hidden when fullscreen is re-requeste...
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 affects Firefox < 135 and Thunderbird < 135.
Scope: local
sid: resolved (fixed in 135.0-1)
Mozilla
Mozilla Foundation Security Advisory 2025-11: CVE-2025-1018
vendor_mozilla·CVSS 5.3
CVE-2025-1018 [MEDIUM] Mozilla Foundation Security Advisory 2025-11: CVE-2025-1018
Mozilla Foundation Security Advisory 2025-11
CVE: CVE-2025-1018
Product: Thunderbird
Impact: high
Fixed in: Thunderbird 135
Mozilla
Mozilla Foundation Security Advisory 2025-07: CVE-2025-1018
vendor_mozilla·CVSS 5.3
CVE-2025-1018 [MEDIUM] Mozilla Foundation Security Advisory 2025-07: CVE-2025-1018
Mozilla Foundation Security Advisory 2025-07
CVE: CVE-2025-1018
Product: Firefox
Impact: high
Fixed in: Firefox 135
VulDB
Mozilla Firefox up to 134 Fullscreen Notification ui layer (Nessus ID 214965)
vuldb·2026-10-01·CVSS 5.3
CVE-2025-1018 [MEDIUM] Mozilla Firefox up to 134 Fullscreen Notification ui layer (Nessus ID 214965)
A vulnerability described as problematic has been identified in Mozilla Firefox up to 134. This issue affects some unknown processing of the component Fullscreen Notification Handler. Executing a manipulation can lead to improper restriction of rendered ui layers.
This vulnerability appears as CVE-2025-1018. The attack may be performed from remote. There is no available exploit.
Upgrading the affected component is recommended.
VulDB
Mozilla Thunderbird up to 134 Fullscreen Notification ui layer (Nessus ID 214965)
vuldb·2026-10-01·CVSS 5.3
CVE-2025-1018 [MEDIUM] Mozilla Thunderbird up to 134 Fullscreen Notification ui layer (Nessus ID 214965)
A vulnerability classified as problematic has been found in Mozilla Thunderbird up to 134. Impacted is an unknown function of the component Fullscreen Notification Handler. The manipulation leads to improper restriction of rendered ui layers.
This vulnerability is traded as CVE-2025-1018. It is possible to initiate the attack remotely. There is no exploit available.
It is recommended to upgrade the affected component.
OSV
firefox vulnerabilities
osv·2025-02-11·CVSS 9.8
CVE-2025-1011 [CRITICAL] firefox vulnerabilities
firefox vulnerabilities
Multiple security issues were discovered in Firefox. If a user were
tricked into opening a specially crafted website, an attacker could
potentially exploit these to cause a denial of service, obtain sensitive
information across domains, or execute arbitrary code. (CVE-2025-1011,
CVE-2025-1013, CVE-2025-1014, CVE-2025-1016, CVE-2025-1017, CVE-2025-1018,
CVE-2025-1019, CVE-2025-1020)
Ivan Fratric discovered that Firefox did not properly handle XSLT data,
leading to a use-after-free vulnerability. An attacker could potentially
exploit this issue to cause a denial of service, or execute arbitrary code.
(CVE-2025-1009)
Atte Kettunen discovered that Firefox did not properly manage memory in
the Custom Highlight API, leading to a use-after-free vulnerability. An
attacke
OSV
CVE-2025-1018: The fullscreen notification is prematurely hidden when fullscreen is re-requested quickly by the user
osv·2025-02-04·CVSS 5.3
CVE-2025-1018 [MEDIUM] CVE-2025-1018: The fullscreen notification is prematurely hidden when fullscreen is re-requested quickly by the user
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 affects Firefox < 135 and Thunderbird < 135.
GHSA
GHSA-cj2j-jvqc-2vrv: The fullscreen notification is prematurely hidden when fullscreen is re-requested quickly by the user
ghsa_unreviewed·2025-02-04
CVE-2025-1018 [HIGH] CWE-1021 GHSA-cj2j-jvqc-2vrv: The fullscreen notification is prematurely hidden when fullscreen is re-requested quickly by the user
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 affects Firefox < 135 and Thunderbird < 135.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2025-02-04
Published