CVE-2013-4851
The vfs_hang_addrlist function in sys/kern/vfs_export.c in the NFS server implementation in the...
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.
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2013-4851- CVSS 2.0
- 6.4 Medium
AV:N/AC:L/Au:N/C:P/I:P/A:N - Weakness
- CWE-264
- Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2013-4851- Updated
- 2026-11-02
EUVDEUVD-2013-4696 No score
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.
- Record
EUVD-2013-4696- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-vvfw-vgqq-f739 No score
The vfs_hang_addrlist function in sys/kern/vfs_export.c in the NFS server implementation in the...
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.
- Record
GHSA-vvfw-vgqq-f739- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
kfreebsd-9Debian:7 From an advisory covering 3 CVEs |
before 9.0-10+deb70.3, plus listed versions 9.0-109.0-10+deb70.19.0-10+deb70.2 |
9.0-10+deb70.3 |
History
| Recorded | Changed | Sources |
|---|---|---|
| affected, facts | ||
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2013-4851 is a medium vulnerability (CVSS 6.4) in Freebsd, published July 28, 2013. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.14%, the 82nd percentile. No source names a fixed version.