Vulnerability record · CVE-2018-25043 · published 17 June 2022

CVE-2018-25043: Bittorrent utorrent improper authentication vulnerability

Bittorrent · Utorrent

A vulnerability classified as critical was found in uTorrent. This vulnerability affects unknown code of the component PRNG. The manipulation leads to weak authentication. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. It is recommended to upgrade the affected component.

8.8 CVSS 3.1 High EPSS 1.2% · top 34.2% CWE-287 · Improper authentication

8.8CVSS 3.1 base score, v2 6.8

1.2%EPSS exploitation probability, 30 days

NoNot in CISA KEV

1Affected product versions listed by NVD

6References, 4 tagged exploit

17 Jun 2026Last modified by NVD

Description

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

Utorrent Bittorrent

References

Link	Tags
http://www.math.sci.hiroshima-u.ac.jp/~m-mat/MT/efaq.html	Third Party Advisory
https://bugs.chromium.org/p/project-zero/issues/detail?id=1524	ExploitIssue TrackingMailing ListThird Party Advisory
https://vuldb.com/?id.113806	ExploitPermissions RequiredThird Party AdvisoryVDB Entry
http://www.math.sci.hiroshima-u.ac.jp/~m-mat/MT/efaq.html	Third Party Advisory
https://bugs.chromium.org/p/project-zero/issues/detail?id=1524	ExploitIssue TrackingMailing ListThird Party Advisory
https://vuldb.com/?id.113806	ExploitPermissions RequiredThird Party AdvisoryVDB Entry

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2018-25043), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.