{"id":"CVE-2013-4851","aliases":["DSA-2743-1","EUVD-2013-4696","GHSA-vvfw-vgqq-f739"],"status":"published","title":"The vfs_hang_addrlist function in sys/kern/vfs_export.c in the NFS server implementation in the...","description":"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.","severity":{"version":"2.0","score":6.4,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.02137,"percentile":0.82146,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-264"],"published":"2013-07-28T18:00:00Z","modified":"2026-06-16T23:57:59Z","affected":[{"source":"osv","ecosystem":"Debian:7","package":"kfreebsd-9","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"9.0-10+deb70.3"}]}],"versions":["9.0-10","9.0-10+deb70.1","9.0-10+deb70.2"],"bundled":3}],"products":[{"vendor":"freebsd","product":"freebsd"}],"references":[{"url":"http://svnweb.freebsd.org/base?view=revision\u0026revision=244226","tags":["x_refsource_CONFIRM","x_transferred"]},{"url":"http://www.freebsd.org/security/advisories/FreeBSD-SA-13:08.nfsserver.asc","tags":["vendor-advisory","x_refsource_FREEBSD","x_transferred"]},{"url":"http://www.securityfocus.com/bid/61484","tags":["vdb-entry","x_refsource_BID","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2013-4851"},{"url":"https://github.com/advisories/GHSA-vvfw-vgqq-f739"}],"sources":{"cve":[{"id":"CVE-2013-4851","description":"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.","status":"published","published":"2013-07-28T18:00:00Z","modified":"2024-08-06T16:59:40.746Z","updated_at":"2026-11-02T14:34:58.193873Z"}],"euvd":[{"id":"EUVD-2013-4696","description":"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.","status":"published","published":"2013-07-28T18:00:00Z","modified":"2024-08-06T16:59:40Z","updated_at":"2026-11-03T01:56:30.535587Z"}],"ghsa":[{"id":"GHSA-vvfw-vgqq-f739","title":"The vfs_hang_addrlist function in sys/kern/vfs_export.c in the NFS server implementation in the...","description":"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.","status":"published","published":"2022-05-14T01:19:58Z","modified":"2023-02-02T05:03:42Z","updated_at":"2026-11-02T14:51:41.689943Z"}],"nvd":[{"id":"CVE-2013-4851","description":"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.","status":"published","published":"2013-07-29T13:59:56.933Z","modified":"2026-06-16T23:57:59.923Z","cvss":[{"version":"2.0","score":6.4,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-264"],"updated_at":"2026-11-02T14:02:31.592595Z"}],"osv":[{"id":"DSA-2743-1","title":"kfreebsd-9 - several","status":"published","published":"2013-08-26T00:00:00Z","modified":"2026-03-09T01:18:40.068905Z","updated_at":"2026-11-02T15:46:15.489951Z"}]}}