CVE-2023-37204
MediumCVSS 6.5Exploitation Probability (EPSS)
Low risk34th percentile - higher than 34% of all known CVEs
Summary
A vulnerability in Firefox (< 115) allows a website to obscure the fullscreen notification by using an option element, potentially causing delays due to an expensive computational function. This could lead to user confusion and possible spoofing attacks.
Risk Assessment
Organizations may be exposed to attacks that exploit user confusion, potentially leading to unauthorized access or fraud.
Recommendation
It is recommended to update Firefox to version 115 or newer to mitigate the risks associated with this vulnerability.
Other vulnerabilities in Firefox
See all- CVE-2026-92079Critical
Mitigation bypass vulnerability in the Widget: Win32 component. It was fixed in Firefox 156, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 153.3.
- CVE-2026-92075Critical
Mitigation bypass in the Networking component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 153.3.
- CVE-2026-92071Critical
Sandbox escape vulnerability due to incorrect boundary conditions in the Widget: Win32 component. It was fixed in Firefox 156, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 153.3.
- CVE-2026-92066Critical
Sandbox escape in the Profile Backup component of Firefox and Thunderbird. This vulnerability was fixed in Firefox 156 and Thunderbird 156.
- CVE-2026-92061Critical
Incorrect boundary conditions in the Security: Process Sandboxing component. Fixed in Firefox 156 and Thunderbird 156.
- CVE-2026-92057Critical
Mitigation bypass vulnerability in the Enterprise Policies component. It was fixed in Firefox 156, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 153.3.
- CVE-2026-92051Critical
Spoofing issue due to invalid pointer in the Graphics component. Fixed in Firefox 156 and Thunderbird 156.
- CVE-2026-92048Critical
Sandbox escape vulnerability due to incorrect boundary conditions in the Widget: Win32 component. It was fixed in Firefox 156, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 153.3.
- CVE-2026-92045Critical
Sandbox escape vulnerability due to incorrect boundary conditions in the WebRTC component. It was fixed in Firefox 156, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 153.3.
- CVE-2026-92037Critical
Incorrect boundary conditions in the DOM: Animation component. This vulnerability was fixed in Firefox 156 and Thunderbird 156.
Original NVD description (English source)
A website could have obscured the fullscreen notification by using an option element by introducing lag via an expensive computational function. This could have led to user confusion and possible spoofing attacks. This vulnerability affects Firefox < 115.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS