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Vulnerability record · CVE-2017-8422 · published 17 May 2017

CVE-2017-8422: Kde kauth authentication bypass by spoofing vulnerability

Kde · Kauth

KDE kdelibs before 4.14.32 and KAuth before 5.34 allow local users to gain root privileges by spoofing a callerID and leveraging a privileged helper app.

7.8 CVSS 3.0 High EPSS 1.8% · top 22.3% CWE-290 · Authentication bypass by spoofing
7.8CVSS 3.0 base score, v2 7.2
1.8%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
22References
17 Jun 2026Last modified by NVD

Description

KDE kdelibs before 4.14.32 and KAuth before 5.34 allow local users to gain root privileges by spoofing a callerID and leveraging a privileged helper app.

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

Affected products

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

References

LinkTags
http://www.debian.org/security/2017/dsa-3849
http://www.openwall.com/lists/oss-security/2017/05/10/3 Third Party AdvisoryVDB Entry
http://www.securityfocus.com/bid/98412 Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1038480
https://access.redhat.com/errata/RHSA-2017:1264
https://bugzilla.redhat.com/show_bug.cgi?id=1449647 Issue TrackingPatch
https://cgit.kde.org/kauth.git/commit/?id=df875f725293af53399f5146362eb158b4f9216a Patch
https://cgit.kde.org/kdelibs.git/commit/?id=264e97625abe2e0334f97de17f6ffb52582888ab Patch
https://security.gentoo.org/glsa/201706-29
https://www.exploit-db.com/exploits/42053/
https://www.kde.org/info/security/advisory-20170510-1.txt PatchVendor Advisory
http://www.debian.org/security/2017/dsa-3849
http://www.openwall.com/lists/oss-security/2017/05/10/3 Third Party AdvisoryVDB Entry
http://www.securityfocus.com/bid/98412 Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1038480
https://access.redhat.com/errata/RHSA-2017:1264
https://bugzilla.redhat.com/show_bug.cgi?id=1449647 Issue TrackingPatch
https://cgit.kde.org/kauth.git/commit/?id=df875f725293af53399f5146362eb158b4f9216a Patch
https://cgit.kde.org/kdelibs.git/commit/?id=264e97625abe2e0334f97de17f6ffb52582888ab Patch
https://security.gentoo.org/glsa/201706-29
https://www.exploit-db.com/exploits/42053/
https://www.kde.org/info/security/advisory-20170510-1.txt PatchVendor Advisory

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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-2017-8422), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.