How severe is CVE-2025-43864?

This vulnerability has a severity rating of HIGH with a CVSS score of 7.5 out of 10.

What type of vulnerability is CVE-2025-43864?

This is classified as CWE-755, which is a common weakness in software security.

CVE-2025-43864 - HIGH Severity | CVSS 7.5

Vulnerability Description

React Router is a router for React. Starting in version 7.2.0 and prior to version 7.5.2, it is possible to force an application to switch to SPA mode by adding a header to the request. If the application uses SSR and is forced to switch to SPA, this causes an error that completely corrupts the page. If a cache system is in place, this allows the response containing the error to be cached, resulting in a cache poisoning that strongly impacts the availability of the application. This issue has been patched in version 7.5.2.

Related Vulnerabilities

CVE-2011-4625

HIGH

CVSS:7.5(High)

simplesamlphp before 1.6.3 (squeeze) and before 1.8.2 (sid) incorrectly handles XML encryption which could allow remote attackers to decrypt or forge messages.

CWE-7552011

CVE-2012-1109

HIGH

CVSS:7.5(High)

mwlib 0.13 through 0.13.4 has a denial of service vulnerability when parsing #iferror magic functions

CWE-7552012

CVE-2015-2688

HIGH

CVSS:7.5(High)

buf_pullup in Tor before 0.2.4.26 and 0.2.5.x before 0.2.5.11 does not properly handle unexpected arrival times of buffers with invalid layouts, which allows remote attackers to cause a denial of serv...

CWE-7552015

CVE-2016-11026

HIGH

CVSS:7.5(High)

An issue was discovered on Samsung mobile devices with KK(4.4), L(5.0/5.1), and M(6.0) software. BootReceiver allows attackers to trigger a system crash because of incorrect exception handling. The Sa...

CWE-7552016

CVE-2017-13199

HIGH

CVSS:7.5(High)

In Bitmap.ccp if Bitmap.nativeCreate fails an out of memory exception is not thrown leading to a java.io.IOException later on. This could lead to a remote denial of service of a critical system proces...

CWE-7552017

CVE-2017-14178

HIGH

CVSS:7.5(High)

In snapd 2.27 through 2.29.2 the 'snap logs' command could be made to call journalctl without match arguments and therefore allow unprivileged, unauthenticated users to bypass systemd-journald's acces...

CWE-7552017