CVE-2013-5710: n/a vulnerability

CVE-2013-5710: The nullfs implementation in sys/fs/nullfs/null_vnops.c in the kernel in FreeBSD 8.3 through 9.2 allows loc...

The nullfs implementation in sys/fs/nullfs/null_vnops.c in the kernel in FreeBSD 8.3 through 9.2 allows local users with certain permissions to bypass access restrictions via a hardlink in a nullfs instance to a file in a different instance.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 6, 2024, 17:22 UTC (UTC+00:00)

Security readout for executives and security teams

This is a local FreeBSD kernel nullfs issue. A user with certain existing permissions could bypass intended file access restrictions using hardlinks across nullfs instances. It matters most on shared systems where untrusted local users can interact with nullfs-mounted paths. Exposure is likely limited to FreeBSD 8.3 through 9.2 systems using nullfs, especially multi-user, jail, hosting, or shared environments. The bundle does not prove exposure for products beyond the named FreeBSD versions. Treat this as a targeted local-access risk, not a broad internet-exposed emergency. Prioritize shared FreeBSD infrastructure and environments hosting untrusted users. Unsupported systems should be upgraded or isolated because vendor remediation confidence is harder to verify. Mitigation focus: Review and apply FreeBSD-SA-13:13 guidance for affected FreeBSD systems.; Confirm whether vendor updates include the referenced FreeBSD revision 255442 fix.; For Debian environments, review DSA-2769 before assuming applicability or remediation status..

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

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0CVSS vectors

0Timeline events

0ADP providers

1Source links

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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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