CVE-2017-8422

Exp

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.

Published: 2017-05-17 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2017-8422 is rated High Exploit Risk (74.2/100): CVSS High severity, with medium exploitation likelihood (EPSS 1.80%). 1 public exploit reference(s) are indexed (Exploit-DB). EPSS rose +1.50% over the last day, indicating growing attacker interest. Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2017-8422

EDB-ID Source Kind Published Link
42053 exploit_db edb 2017-05-18 Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2017-8422

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.31% 1.80% +1.50%
2 2026-05-08 0.37% 0.31% -0.07%
3 2025-11-21 — 0.37% —

Full EPSS history (10 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2017-8422

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.8 3.0 HIGH
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 1.8 5.9 [email protected]
7.2 2.0 HIGH
AV:L/AC:L/Au:N/C:C/I:C/A:C Click to expand
Access vector (AV:L)
Requires local access to the target system.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:C)
Complete confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
 3.9 10.0 [email protected]

Weakness enumeration for CVE-2017-8422

OS Trackers for CVE-2017-8422

vendor priority summary link
debian not yet assigned CVE-2017-8422 not yet assigned priority: Debian including 1 source packages (kauth), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2017-8422
gentoo high CVE-2017-8422: 1 GLSA(s) (201706-29), 2 atom(s) (kde-frameworks/kauth, kde-frameworks/kdelibs); latest impact high. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2017-8422
redhat high — https://access.redhat.com/security/cve/CVE-2017-8422
suse high CVE-2017-8422 severity important: SUSE including 75 source package names (kauth-devel-5.20.0-7.1, kauth-devel-5.26.0-6.1, …), 151 product×package rows across 24 product lines (SUSE Liberty Linux 7, SUSE Linux Enterprise Desktop 12 SP1, … (24 product lines)): Fixed 141, Known Not Affected 10. https://www.suse.com/security/cve/CVE-2017-8422/
ubuntu high CVE-2017-8422 high priority: Ubuntu including 2 source packages (kauth, kde4libs), 10 status rows across 5 suites (trusty, upstream, xenial, yakkety, zesty): released 9, DNE 1. https://ubuntu.com/security/CVE-2017-8422

Affected software / configurations for CVE-2017-8422

Vendor Product Version Raw CPE
kde kauth <= 5.33 cpe:2.3:a:kde:kauth:*:*:*:*:*:*:*:*
kde kdelibs <= 4.14.31 cpe:2.3:a:kde:kdelibs:*:*:*:*:*:*:*:*

References for CVE-2017-8422

cvelogic Threat Intelligence