Is CVE-2017-8422 in the CISA KEV catalog?

No. CVE-2017-8422 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2017-8422?

CVE-2017-8422 has a CVSS v3 base score of 7.8 (HIGH).

What is the EPSS score for CVE-2017-8422?

CVE-2017-8422 has an EPSS score of 1.80% (76th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2017-8422?

Upgrade kauth on debian 11 to 5.28.0-2 or later. Fixes are available for 3 affected products.

CVE & CISA-KEV Catalog

CVE-2017-8422

HIGHEPSS 76th pctl

7.8

CVSS v3

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.

CWE-290

How to fix

Remediation Available

kauthDebian

Fixed in:5.28.0-2CVE-2017-8422

kde4libsUbuntu

Fixed in:4:4.13.3-0ubuntu0.5USN-3286-1

kdelibs5-pluginsUbuntu

Fixed in:4:4.13.3-0ubuntu0.5USN-3286-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

1.80%probability of exploitation in 30 days

76thpercentile

Elevated risk: more likely to be exploited than 76% of all known CVEs.

References

Patch4

Third-Party Advisory2

Other references5

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-13.