Is CVE-2017-12778 actively exploited?

No active exploitation of CVE-2017-12778 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2017-12778 be exploited remotely?

No. CVE-2017-12778 requires local access to exploit.

What is the CVSS score of CVE-2017-12778?

CVE-2017-12778 has a CVSS score of 7.1 (HIGH).

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HIGH

CVE-2017-12778

CWE-287Published: May 9, 2019· Updated: Jun 17, 2026

7.1

CVSS v3.1

Official Description

The UI Lock feature in qBittorrent version 3.3.15 is vulnerable to Authentication Bypass, which allows Attack to gain unauthorized access to qBittorrent functions by tampering the affected flag value of the config file at the C:\Users\<username>\Roaming\qBittorrent pathname. The attacker must change the value of the "locked" attribute to "false" within the "Locking" stanza. NOTE: This is an intended behavior. See https://github.com/qbittorrent/qBittorrent/wiki/I-forgot-my-UI-lock-password

NVD Source

Technical Analysis

CVE-2017-12778 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), with a CVSS base score of 7.1.

From a weakness classification perspective (CWE-287): Authentication bypass vulnerabilities allow attackers to access protected resources without valid credentials.