CVE-2013-3266 — The nfsrvd_readdir function in sys/fs/nfsserver/nfs_nfsdport.c in the new NFS server in FreeBSD 8.0 through 9.1-RELEASE-p3 does not verify that a READDIR request is for a directory node, which allows remote attackers to cause a denial of service (memory corruption) or possibly execute arbitrary code by specifying a plain file instead of a directory

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HIGH

The nfsrvd_readdir function in sys/fs/nfsserver/nfs_nfsdport.c in the new NFS server in FreeBSD 8.0 through 9.1-RELEASE-p3 does not verify that a READDIR request is for a directory node, which allows remote attackers to cause a denial of service (memory corruption) or possibly execute arbitrary code by specifying a plain file instead of a directory

Published May 2, 2013

7.5

HIGH

CVSS 2.0

EPSS 3.51%

Description

The nfsrvd_readdir function in sys/fs/nfsserver/nfs_nfsdport.c in the new NFS server in FreeBSD 8.0 through 9.1-RELEASE-p3 does not verify that a READDIR request is for a directory node, which allows remote attackers to cause a denial of service (memory corruption) or possibly execute arbitrary code by specifying a plain file instead of a directory.

Affected products

Remediation

No remediation recorded yet.

Metrics

3.51% 0.03510

Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.

EPSS probability 0.03510

Score over time

2022–2026

EPSS v2
EPSS v3
EPSS v4
EPSS v5

Percentile over time

EPSS v2
EPSS v3
EPSS v4
EPSS v5

Table of values (11 key points)

Flat stretches are collapsed; showing up to 120 newest points.

Date	Score	Percentile	Model
Oct 1, 2026	3.51% (0.03510)	88.81th	v5 (v2026.06.15)
Jun 15, 2026	3.51% (0.03510)	87.64th	v5 (v2026.06.15)
Mar 30, 2025	2.31% (0.02313)	83.32th	v4 (v2025.03.14)
Mar 29, 2025	4.73% (0.04730)	81.95th	v4 (v2025.03.14)
Mar 17, 2025	2.31% (0.02313)	83.64th	v4 (v2025.03.14)
Dec 17, 2024	5.04% (0.05044)	92.77th	v3 (v2023.03.01)
Nov 30, 2024	11.52% (0.11523)	95.47th	v3 (v2023.03.01)
Mar 7, 2023	10.32% (0.10316)	94.00th	v3 (v2023.03.01)
Mar 6, 2023	4.29% (0.04291)	87.64th	v2 (v2022.01.01)
Apr 1, 2022	4.29% (0.04291)	86.39th	v2 (v2022.01.01)
Feb 4, 2022	4.29% (0.04291)	70.14th	v2 (v2022.01.01)

Weaknesses (1)

CWE-20

Improper Input Validation

References (4)

http://secunia.com/advisories/53241
third-party-advisoryx_refsource_SECUNIA
http://www.debian.org/security/2013/dsa-2672
vendor-advisoryx_refsource_DEBIAN
http://www.freebsd.org/security/advisories/FreeBSD-SA-13:05.nfsserver.asc
vendor-advisoryx_refsource_FREEBSDPatchVendor Advisory
http://www.securitytracker.com/id/1028491
vdb-entryx_refsource_SECTRACK

Link	Providers	Tags
http://secunia.com/advisories/53241		third-party-advisoryx_refsource_SECUNIA
http://www.debian.org/security/2013/dsa-2672		vendor-advisoryx_refsource_DEBIAN
http://www.freebsd.org/security/advisories/FreeBSD-SA-13:05.nfsserver.asc		vendor-advisoryx_refsource_FREEBSDPatchVendor Advisory
http://www.securitytracker.com/id/1028491		vdb-entryx_refsource_SECTRACK

Change history (0)

No recorded changes yet.

Sources

CVE.org / MITRE

Status PUBLISHED

Assigner mitre

Published May 2, 2013

Updated Aug 6, 2024

Reserved Apr 23, 2013

Link CVE-2013-3266

CISA Vulnrichment

Updated n/a

NVD

Status Modified

Modified Jun 16, 2026

Link CVE-2013-3266

Red Hat

Severity n/a

Public date n/a

Links CVE-2013-3266