HOME VULNERABILITIESCVE-2017-8422

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CVE-2017-8422

CWE-290Published: May 17, 2017· Updated: Jun 17, 2026

7.8

CVSS v3.1

Official 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.

Technical Analysis

CVE-2017-8422 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 7.8.

A proof-of-concept (PoC) exploit exists for CVE-2017-8422. While not yet confirmed in active campaigns, the availability of PoC code increases exploitation risk substantially.

CVSS v3.1 Vector Breakdown

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges Req.Low

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

Affected Vendors & Products

kde2 product(s)

kauthkdelibs

Source: NVD CPE · 2 total CPE entries

Exploit & PoC Resources

POC AVAILABLEProof-of-concept code exists

Offensive Security exploit database

GitHub PoC Search

Community PoC repositories

Rapid7 / Metasploit

Metasploit module search

Security advisories & exploits

Official NIST entry

CVE Program entry

External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttps://bugzilla.redhat.com/show_bug.cgi?id=1449647

PATCHhttps://cgit.kde.org/kauth.git/commit/?id=df875f725293af53399f5146362eb158b4f9216a

PATCHhttps://cgit.kde.org/kdelibs.git/commit/?id=264e97625abe2e0334f97de17f6ffb52582888ab

PATCHhttps://www.kde.org/info/security/advisory-20170510-1.txt

PATCHhttps://bugzilla.redhat.com/show_bug.cgi?id=1449647

PATCHhttps://cgit.kde.org/kauth.git/commit/?id=df875f725293af53399f5146362eb158b4f9216a

PATCHhttps://cgit.kde.org/kdelibs.git/commit/?id=264e97625abe2e0334f97de17f6ffb52582888ab

PATCHhttps://www.kde.org/info/security/advisory-20170510-1.txt

ADVISORYhttp://www.openwall.com/lists/oss-security/2017/05/10/3

ADVISORYhttp://www.securityfocus.com/bid/98412

ADVISORYhttp://www.openwall.com/lists/oss-security/2017/05/10/3

ADVISORYhttp://www.securityfocus.com/bid/98412

All References (22)

→

http://www.debian.org/security/2017/dsa-3849

→

http://www.openwall.com/lists/oss-security/2017/05/10/3Third Party Advisory · VDB Entry

→

http://www.securityfocus.com/bid/98412Third Party Advisory · VDB Entry

→

http://www.securitytracker.com/id/1038480

→

https://access.redhat.com/errata/RHSA-2017:1264

→

https://bugzilla.redhat.com/show_bug.cgi?id=1449647Issue Tracking · Patch

→

https://cgit.kde.org/kauth.git/commit/?id=df875f725293af53399f5146362eb158b4f9216aPatch

→

https://cgit.kde.org/kdelibs.git/commit/?id=264e97625abe2e0334f97de17f6ffb52582888abPatch

→

https://security.gentoo.org/glsa/201706-29

→

https://www.exploit-db.com/exploits/42053/

→

https://www.kde.org/info/security/advisory-20170510-1.txtPatch · Vendor Advisory

→

http://www.debian.org/security/2017/dsa-3849

→

http://www.openwall.com/lists/oss-security/2017/05/10/3Third Party Advisory · VDB Entry

→

http://www.securityfocus.com/bid/98412Third Party Advisory · VDB Entry

→

http://www.securitytracker.com/id/1038480

Quick Facts

CVE IDCVE-2017-8422

CVSS Score7.8 / 10

SeverityHIGH

WeaknessCWE-290

CISA KEVNo

ExploitPOC

Affected1 vendor(s)

PublishedMay 17, 2017

Related CVEs (CWE-290)

Recommended Actions

→Apply vendor patches immediately
→Monitor CVE-2017-8422 in threat intel feeds
→Review IDS/IPS signatures for exploitation attempts

Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.

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