CVE-2025-1019
published 2025-02-04CVE-2025-1019: The z-order of the browser windows could be manipulated to hide the fullscreen notification. This could potentially be leveraged to perform a spoofing attack…
PriorityP417medium4.3CVSS 3.1
AVNACLPRNUIRSUCNILAN
EPSS
0.35%
27.4th percentile
The z-order of the browser windows could be manipulated to hide the fullscreen notification. This could potentially be leveraged to perform a 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
nvdv3.14.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
osv9.8CRITICAL
vendor_ubuntu9.8CRITICAL
vendor_debian4.3MEDIUM
vendor_redhat4.3MEDIUM
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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 not properly displayed
vendor_redhat·2025-02-04·CVSS 4.3
CVE-2025-1019 [MEDIUM] CWE-451 firefox: thunderbird: Fullscreen notification not properly displayed
firefox: thunderbird: Fullscreen notification not properly displayed
The z-order of the browser windows could be manipulated to hide the fullscreen notification. This could potentially be leveraged to perform a 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 z-order of the browser windows could be manipulated to hide the fullscreen notification. This could potentially be leveraged to perform a spoofing attack.
Statement: Red Hat Product Security rates the severity of this flaw as determined by the Mozilla Foundation Security Advisory.
Package: firefox (Red Hat Enterprise Linux 10) - Fix deferred
Package: firefox-flatpak-container (Red Hat Enterpri
Debian
CVE-2025-1019: firefox - The z-order of the browser windows could be manipulated to hide the fullscreen n...
vendor_debian·2025·CVSS 4.3
CVE-2025-1019 [MEDIUM] CVE-2025-1019: firefox - The z-order of the browser windows could be manipulated to hide the fullscreen n...
The z-order of the browser windows could be manipulated to hide the fullscreen notification. This could potentially be leveraged to perform a spoofing attack. This vulnerability affects Firefox < 135 and Thunderbird < 135.
Scope: local
sid: resolved (fixed in 135.0-1)
Mozilla
Mozilla Foundation Security Advisory 2025-07: CVE-2025-1019
vendor_mozilla·CVSS 4.3
CVE-2025-1019 [MEDIUM] Mozilla Foundation Security Advisory 2025-07: CVE-2025-1019
Mozilla Foundation Security Advisory 2025-07
CVE: CVE-2025-1019
Product: Firefox
Impact: high
Fixed in: Firefox 135
Mozilla
Mozilla Foundation Security Advisory 2025-11: CVE-2025-1019
vendor_mozilla·CVSS 4.3
CVE-2025-1019 [MEDIUM] Mozilla Foundation Security Advisory 2025-11: CVE-2025-1019
Mozilla Foundation Security Advisory 2025-11
CVE: CVE-2025-1019
Product: Thunderbird
Impact: high
Fixed in: Thunderbird 135
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-2025-1019: The z-order of the browser windows could be manipulated to hide the fullscreen notification
osv·2025-02-04·CVSS 4.3
CVE-2025-1019 [MEDIUM] CVE-2025-1019: The z-order of the browser windows could be manipulated to hide the fullscreen notification
The z-order of the browser windows could be manipulated to hide the fullscreen notification. This could potentially be leveraged to perform a spoofing attack. This vulnerability affects Firefox < 135 and Thunderbird < 135.
GHSA
GHSA-gg39-4c5c-pfx2: The z-order of the browser windows could be manipulated to hide the fullscreen notification
ghsa_unreviewed·2025-02-04
CVE-2025-1019 [MEDIUM] CWE-1021 GHSA-gg39-4c5c-pfx2: The z-order of the browser windows could be manipulated to hide the fullscreen notification
The z-order of the browser windows could be manipulated to hide the fullscreen notification. This could potentially be leveraged to perform a 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