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CVE-2017-12778

24
FAUCET Score

CVE-2017-12778 describes an authentication bypass vulnerability in qBittorrent version 3.3.15's UI Lock feature. An attacker with local access can gain unauthorized access to qBittorrent functions by directly modifying the "locked" attribute in the configuration file to "false." This vulnerability has a CVSS v3 score of 7.1 (High), indicating that it requires local access and low privileges but can lead to high confidentiality and integrity impacts. While no public exploit code or active exploitation is reported, and community discussion is minimal, it's important to note that this behavior is considered "intended" by the developers, implying a design choice rather than a traditional software flaw.

Impacted Technologies

VendorProductVersion(s)CPE
3.3.15CPE matchmatch criteria
cpe:2.3:a:qbittorrent:qbittorrent:3.3.15:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.1HIGH

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
1.8
Impact Score
5.2
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.48%
Probability of exploitation in next 30 days
EPSS Percentile
38.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0048 is in the 79th percentile among its peer group of 17,070 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

archive.is / eF2GR
ExploitThird Party Advisory
github.com / qbittorrent/qBittorrent/wiki/I-forgot-my-UI-lock-password
medium.com / %40BaYinMin/cve-2017-12778-qbittorrent-ui-lock-authentication-bypass-30959ff55ada