CVE-2016-1887: n/a vulnerability

CVE-2016-1887: Integer signedness error in the sockargs function in sys/kern/uipc_syscalls.c in FreeBSD 10.1 before p34, 1...

Integer signedness error in the sockargs function in sys/kern/uipc_syscalls.c in FreeBSD 10.1 before p34, 10.2 before p17, and 10.3 before p3 allows local users to cause a denial of service (memory overwrite and kernel panic) or gain privileges via a negative buflen argument, which triggers a heap-based buffer overflow.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 5, 2024, 23:10 UTC (UTC+00:00)

Security readout for executives and security teams

This is a FreeBSD kernel flaw where a local user could crash the system or potentially gain higher privileges. It matters most on FreeBSD systems that allow untrusted local accounts, shared hosting users, or compromised application users to run code locally. Exposure is limited to FreeBSD 10.1, 10.2, and 10.3 systems below the listed patch levels. The attacker needs local user access, so externally exposed services are mainly relevant if they can be used to obtain local code execution first. Prioritize remediation where affected FreeBSD systems support multiple users, shared hosting, or internet-facing workloads that could be chained into local access. For isolated systems without untrusted local users, urgency is lower but patching is still required. Mitigation focus: Apply FreeBSD-SA-16:19 fixes or upgrade beyond the affected patch levels.; Prioritize shared systems with untrusted shell, hosting, or application users.; Reduce unnecessary local account access on affected FreeBSD hosts..

Prepared: Jun 13, 2026, 14:22 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: May 25, 2016, 15:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

0Timeline events

0ADP providers

2Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5
FreeBSD-SA-16:19CVE reference · vendor-advisory, x_refsource_FREEBSD

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

No CWE listed

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