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CVE-2016-6242

OpenBSD 5.8 and 5.9 allows local users to cause a denial of service (assertion failure and kernel...

5.5 Medium

OpenBSD 5.8 and 5.9 allows local users to cause a denial of service (assertion failure and kernel panic) via a large ident value in a kevent system call.

Attack profile

How easy it is to exploit

Attack vector
Local
Complexity
Low
Privileges needed
Low
User interaction
None

What an attacker can affect

Confidentiality
None
Integrity
None
Availability
High

Exploit likelihood

0.43%Down 0.5 points since Feb 4, 2022
90%50%10%1%

What each source reports

NVD Score used 5.5

OpenBSD 5.8 and 5.9 allows local users to cause a denial of service (assertion failure and kernel panic) via a large ident value in a kevent system call.

Record
CVE-2016-6242
CVSS 3.0
5.5 MediumCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0
4.9 MediumAV:L/AC:L/Au:N/C:N/I:N/A:C
Weakness
CWE-189
Updated
2026-11-02
CVE List No score

OpenBSD 5.8 and 5.9 allows local users to cause a denial of service (assertion failure and kernel panic) via a large ident value in a kevent system call.

Record
CVE-2016-6242
Updated
2026-11-02
EUVDEUVD-2016-7172 No score

OpenBSD 5.8 and 5.9 allows local users to cause a denial of service (assertion failure and kernel panic) via a large ident value in a kevent system call.

Record
EUVD-2016-7172
Updated
2026-11-03
GitHub AdvisoriesGHSA-jf6q-68vq-p2q4 5.5

OpenBSD 5.8 and 5.9 allows local users to cause a denial of service (assertion failure and kernel...

OpenBSD 5.8 and 5.9 allows local users to cause a denial of service (assertion failure and kernel panic) via a large ident value in a kevent system call.

Record
GHSA-jf6q-68vq-p2q4
CVSS 3.0
5.5 MediumCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02

Affected products

History

History
RecordedChangedSources
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2016-6242 is a medium vulnerability (CVSS 5.5) in Openbsd, published March 7, 2017. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.43%, the 37th percentile. No source names a fixed version.

References

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