Spoofing attack in Mozilla products - CVE-2025-9183

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Main Vulnerability Database Vulnerabilities #VU114390

Spoofing attack in Mozilla products - CVE-2025-9183

Published: August 22, 2025


Vulnerability identifier: #VU114390
CSH Severity: Medium
CVSS v4 BT: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]
CVE-ID: CVE-2025-9183
CWE-ID: CWE-451
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to perform spoofing attack.

The vulnerability exists due to incorrect processing HTML content. A remote attacker can trick the victim into visiting a malicious website and spoof the address bar.


Affected software

Firefox for Android
Firefox Focus for Android
Mozilla Firefox
Firefox ESR
SUSE Linux Enterprise Server 12 SP5 LTSS Extended
SUSE Linux Enterprise Server 12 SP5
SUSE Linux Enterprise Server 15 SP5
SUSE Linux Enterprise Server 15 SP4
SUSE Linux Enterprise Server 15 SP3
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise Server for SAP Applications 15
SUSE Linux Enterprise High Performance Computing LTSS 15
SUSE Linux Enterprise High Performance Computing 15
SUSE Linux Enterprise High Performance Computing ESPOS 15
SUSE Linux Enterprise High Performance Computing 12
SUSE Linux Enterprise Server 12
SUSE Linux Enterprise Server for SAP Applications 12
SUSE Linux Enterprise Real Time 15
SUSE Linux Enterprise Desktop 15
SUSE Enterprise Storage
Desktop Applications Module
openSUSE Leap
openEuler
firefox-debugsource
firefox-debuginfo
firefox
MozillaFirefox-translations-common
MozillaFirefox-devel
MozillaFirefox-debuginfo
MozillaFirefox
MozillaFirefox-debugsource
MozillaFirefox-branding-upstream
MozillaFirefox-translations-other

How to mitigate CVE-2025-9183

Install updates from vendor's website.

Firefox for Android - update to 142.0
Mozilla Firefox - update to 142.0
Firefox ESR - update to 140.2.0
Firefox Focus for Android - update to 142.0
firefox-debugsource - addressed in versions 128.14.0-1, 140.3.1-1
firefox-debuginfo - addressed in versions 128.14.0-1, 140.3.1-1
firefox - addressed in versions 128.14.0-1, 140.3.1-1
MozillaFirefox-translations-common - addressed in versions 140.2.0-112.276.1, 140.2.0-150200.152.198.1
MozillaFirefox-devel - addressed in versions 140.2.0-112.276.1, 140.2.0-150200.152.198.1
MozillaFirefox-debuginfo - addressed in versions 140.2.0-112.276.1, 140.2.0-150200.152.198.1
MozillaFirefox - addressed in versions 140.2.0-112.276.1, 140.2.0-150200.152.198.1
MozillaFirefox-debugsource - addressed in versions 140.2.0-112.276.1, 140.2.0-150200.152.198.1
MozillaFirefox-branding-upstream - update to 140.2.0-150200.152.198.1
MozillaFirefox-translations-other - update to 140.2.0-150200.152.198.1

External References

Related Security Bulletins