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Fencer Vulns
critical 9.8

CVE-2019-13640 json

In qBittorrent before 4.1.7, the function Application::runExternalProgram() located in app/application.cpp allows command injection via she…

published 2019-07-17 7 y ago modified 2026-06-17 4 mo ago also EUVD-2019-5067

cvss
9.8
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
7.9%
EPSS 7.9% chance of exploitation in 30 days, percentile 94%
public exploits
0
none known

Summary

In qBittorrent before 4.1.7, the function Application::runExternalProgram() located in app/application.cpp allows command injection via shell metacharacters in the torrent name parameter or current tracker parameter, as demonstrated by remote command execution via a crafted name within an RSS feed.

Patch / fix

  • qbittorrent qbittorrent 4.1.7
  • qbittorrent Debian 14, Debian 13, Debian 12 4.1.7-1

debian advisories DEBIAN-CVE-2019-13640

  • qbittorrent Package Hub 15 SP1 4.1.5-bp151.3.3.1
  • qbittorrent openSUSE Leap 15.1 4.1.5-lp151.2.3.1

opensuse advisories openSUSE-SU-2019:2024-1openSUSE-SU-2019:2005-1

  • qbittorrent Alpine 3.24, Alpine 3.23, Alpine 3.22 +6 more 4.1.6-r3

alpine advisories ALPINE-CVE-2019-13640

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2019-13640 updated cvss 4.8

qbittorrent: command injection in function Application::runExternalProgram() in app/application.cpp

  • Red Hat All currently supported Red Hat products
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

7.91% chance of exploitation in the next 30 days, higher than 94% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • github.com https://github.com/qbittorrent/qBittorrent/issues/10925 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.0 9.8 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P

Classification

Weakness
  • CWE-78 Improper Neutralization of Special Elements used in an OS Command

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.