The vfs_hang_addrlist function in sys/kern/vfs_export.c in the NFS server implementation…
Priority LOW 33CWE-264Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- Partial · Partial · None
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA. Impact type from CWE-264.
Summary
The vfs_hang_addrlist function in sys/kern/vfs_export.c in the NFS server implementation in the kernel in FreeBSD 8.3 and 9.x through 9.1-RELEASE-p5 controls authorization for host/subnet export entries on the basis of group information sent by the client, which allows remote attackers to bypass file permissions on NFS filesystems via crafted requests.
Why it matters now
EPSS 0.02137 82nd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 5
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:freebsd:freebsd:8.3:*:*:*:*:*:*:* | 8.3 | Vulnerable | FreeBSD |
| cpe:2.3:o:freebsd:freebsd:9.0:*:*:*:*:*:*:* | 9.0 | Vulnerable | FreeBSD |
| cpe:2.3:o:freebsd:freebsd:9.1:*:*:*:*:*:*:* | 9.1 | Vulnerable | FreeBSD |
| cpe:2.3:o:freebsd:freebsd:9.1:p4:*:*:*:*:*:* | 9.1 p4 | Vulnerable | FreeBSD |
| cpe:2.3:o:freebsd:freebsd:9.1:p5:*:*:*:*:*:* | 9.1 p5 | Vulnerable | FreeBSD |
- cpe:2.3:o:freebsd:freebsd:8.3:*:*:*:*:*:*:* Versions 8.3 Vulnerable ·FreeBSD
- cpe:2.3:o:freebsd:freebsd:9.0:*:*:*:*:*:*:* Versions 9.0 Vulnerable ·FreeBSD
- cpe:2.3:o:freebsd:freebsd:9.1:*:*:*:*:*:*:* Versions 9.1 Vulnerable ·FreeBSD
- cpe:2.3:o:freebsd:freebsd:9.1:p4:*:*:*:*:*:* Versions 9.1 p4 Vulnerable ·FreeBSD
- cpe:2.3:o:freebsd:freebsd:9.1:p5:*:*:*:*:*:* Versions 9.1 p5 Vulnerable ·FreeBSD
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2013-4851
- 2026-10-03 Alias added: GHSA-vvfw-vgqq-f739
References
More Freebsd vulnerabilities
- TI-2011-04182 Buffer overflow in libtelnet/encrypt.c in telnetd in FreeBSD 7.3 through 9.0, MIT… CVSS 2.0HIGH 10.0
- TI-2007-03684 Integer overflow in print-bgp.c in the BGP dissector in tcpdump 3.9.6 and earlier allows… CVSS 3.1CRITICAL 9.8
- TI-2002-00376 Integer overflow in xdr_array function in RPC servers for operating systems that use… CVSS 3.1CRITICAL 9.8
- TI-2024-05929 Openssh: regresshion - race condition in ssh allows rce/dos CVSS 3.1HIGH 8.1
- TI-2003-00437 Off-by-one error in the fb_realpath() function, as derived from the realpath function in… CVSS 3.1CRITICAL 9.8
- TI-2003-00642 The prescan function in Sendmail 8.12.9 allows remote attackers to execute arbitrary code… CVSS 2.0HIGH 10.0
Sources
- CVE-2013-4851 · CVE Program
- CVE-2013-4851 · NVD
- FIRST EPSS
- GHSA-vvfw-vgqq-f739 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences