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Fencer Vulns
medium 5.5

CVE-2017-6410 json

kpac/script.cpp in KDE kio before 5.32 and kdelibs before 4.14.30 calls the PAC FindProxyForURL function with a full https URL (potentially…

published 2017-03-02 9 y ago modified 2026-06-17 4 mo ago also EUVD-2017-15467

cvss
5.5
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.9%
EPSS 0.9% chance of exploitation in 30 days, percentile 58%
public exploits
0
none known

Summary

kpac/script.cpp in KDE kio before 5.32 and kdelibs before 4.14.30 calls the PAC FindProxyForURL function with a full https URL (potentially including Basic Authentication credentials, a query string, or PATH_INFO), which allows remote attackers to obtain sensitive information via a crafted PAC file.

Patch / fix

  • kio Debian 14, Debian 13, Debian 12 5.28.0-2

debian advisories DEBIAN-CVE-2017-6410

  • kio Ubuntu 16.04 LTS 5.18.0-0ubuntu1.1
  • kde4libs Ubuntu 14.04 LTS 4:4.13.3-0ubuntu0.4
  • kde4libs Ubuntu 16.04 LTS 4:4.14.16-0ubuntu3.1

ubuntu advisories UBUNTU-CVE-2017-6410

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • kio Package Hub 12 SP2, Package Hub 12 SP1 5.26.0-5.1
  • kdelibs4 Package Hub 12 SP2, Package Hub 12 SP1 4.14.25-5.3
  • kdelibs4-apidocs Package Hub 12 SP2, Package Hub 12 SP1 4.14.25-5.3

opensuse advisories openSUSE-SU-2017:0677-1openSUSE-SU-2017:0680-1

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-2017-6410 updated cvss 5.3

kdelibs: Information Leak when accessing https when using a malicious PAC file

  • Red Hat Enterprise Linux 5 kdelibs Red Hat Enterprise Linux 6 kdelibs, kdelibs-common, kdelibs-apidocs Red Hat Enterprise Linux 7 kdelibs, kdelibs-common, kdelibs-apidocs, kdelibs-ktexteditor
    affected: no fix planned “Will not fix”

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

0.86% chance of exploitation in the next 30 days, higher than 58% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.0 5.5 CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:P/I:N/A:N

Classification

Weakness
  • CWE-319 Cleartext Transmission of Sensitive Information

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.