CVE-2013-5666: n/a vulnerability

CVE-2013-5666: The sendfile system-call implementation in sys/kern/uipc_syscalls.c in the kernel in FreeBSD 9.2-RC1 and 9....

The sendfile system-call implementation in sys/kern/uipc_syscalls.c in the kernel in FreeBSD 9.2-RC1 and 9.2-RC2 does not properly pad transmissions, which allows local users to obtain sensitive information (kernel memory) via a length greater than the length of the file.

UnknownCVSS not scoredNot KEV-listedUpdatedSep 16, 2024, 20:22 UTC (UTC+00:00)

Security readout for executives and security teams

CVE-2013-5666 is a FreeBSD kernel information disclosure issue in sendfile. On FreeBSD 9.2-RC1 and 9.2-RC2, a local user could cause extra transmitted data to include kernel memory. The cited sources do not show active exploitation or a CVSS score. Exposure appears limited to systems running the affected FreeBSD 9.2 release candidates, especially where untrusted users have local accounts or can execute local code. The provided affected-product metadata is incomplete, so confirm against the FreeBSD advisory. Prioritize only if legacy FreeBSD 9.2-RC systems remain in service or untrusted users can access them. The business risk is sensitive kernel memory disclosure, but the evidence points to older release-candidate builds rather than broadly current supported platforms. Mitigation focus: Identify any FreeBSD 9.2-RC1 or 9.2-RC2 systems.; Follow FreeBSD-SA-13:11 vendor guidance for correction.; Upgrade affected release-candidate systems to a fixed supported FreeBSD build..

Prepared: Jun 14, 2026, 15:32 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: Sep 23, 2013, 20:00 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

1Source 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

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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