HOMEVULNERABILITIESCVE-2016-3100
HIGH

CVE-2016-3100

CWE-200Published: July 13, 2016· Updated: Jun 17, 2026

8.4
CVSS v3.1

Official Description

kinit in KDE Frameworks before 5.23.0 uses weak permissions (644) for /tmp/xauth-xxx-_y, which allows local users to obtain X11 cookies of other users and consequently capture keystrokes and possibly gain privileges by reading the file.

NVD Source

Technical Analysis

CVE-2016-3100 requires local access, meaning attackers must already have a foothold on the target system.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

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 8.4.

From a weakness classification perspective (CWE-200): Information exposure vulnerabilities leak sensitive data to unauthorized actors.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

kde1 product(s)
kde frameworks
openSUSE2 product(s)
leapopensuse
Source: NVD CPE · 3 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

All References (16)

→
http://lists.opensuse.org/opensuse-updates/2016-07/msg00001.html
→
http://www.kde.com/announcements/kde-frameworks-5.23.0.php
→
http://www.securityfocus.com/bid/91769
→
https://bugs.kde.org/show_bug.cgi?id=358593
→
https://bugs.kde.org/show_bug.cgi?id=363140
→
https://quickgit.kde.org/?p=kinit.git&a=commitdiff&h=72f3702dbe6cf15c06dc13da2c99c864e9022a58
→
https://quickgit.kde.org/?p=kinit.git&a=commitdiff&h=dece8fd89979cd1a86c03bcaceef6e9221e8d8cd
→
https://www.kde.org/info/security/advisory-20160621-1.txt
→
http://lists.opensuse.org/opensuse-updates/2016-07/msg00001.html
→
http://www.kde.com/announcements/kde-frameworks-5.23.0.php
→
http://www.securityfocus.com/bid/91769
→
https://bugs.kde.org/show_bug.cgi?id=358593
→
https://bugs.kde.org/show_bug.cgi?id=363140
→
https://quickgit.kde.org/?p=kinit.git&a=commitdiff&h=72f3702dbe6cf15c06dc13da2c99c864e9022a58
→
https://quickgit.kde.org/?p=kinit.git&a=commitdiff&h=dece8fd89979cd1a86c03bcaceef6e9221e8d8cd

Quick Facts

CVE IDCVE-2016-3100
CVSS Score8.4 / 10
SeverityHIGH
WeaknessCWE-200
CISA KEVNo
Affected2 vendor(s)
PublishedJul 13, 2016

Related CVEs (CWE-200)

CVE-2008-1252
10.0
CVE-2008-1155
10.0
CVE-2026-27604
10.0
CVE-2025-22612
10.0
CVE-2026-40965
10.0
CVE-2008-0082
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2016-3100 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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