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CVE-2025-4525: Discord WINSTA.dll uncontrolled search path

7.3 CVSS

Description

A vulnerability, which was classified as critical, has been found in Discord 1.0.9188 on Windows. Affected by this issue is some unknown functionality in the library WINSTA.dll. The manipulation leads to uncontrolled search path. The attack needs to be approached locally. The complexity of an attack is rather high. The exploitation is known to be difficult. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way. Eine kritische Schwachstelle wurde in Discord 1.0.9188 für Windows entdeckt. Davon betroffen ist unbekannter Code in der Bibliothek WINSTA.dll. Mittels Manipulieren mit unbekannten Daten kann eine uncontrolled search path-Schwachstelle ausgenutzt werden. Der Angriff muss lokal passieren. Die Komplexität eines Angriffs ist eher hoch. Sie ist schwierig ausnutzbar. Der Exploit steht zur öffentlichen Verfügung.

Classification

CVE ID: CVE-2025-4525

CVSS Base Severity: HIGH

CVSS Base Score: 7.3

CVSS Vector: CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Problem Types

Uncontrolled Search Path Untrusted Search Path

Affected Products

Vendor: n/a

Product: Discord

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.01% (probability of being exploited)

EPSS Percentile: 1.12% (scored less or equal to compared to others)

EPSS Date: 2025-06-08 (when was this score calculated)

References

https://nvd.nist.gov/vuln/detail/CVE-2025-4525
https://vuldb.com/?id.308270
https://vuldb.com/?ctiid.308270
https://vuldb.com/?submit.562788
https://gist.github.com/shellkraft/ac4be6a3953e2889a7bf54aea2db88c2

Timeline