CVE-2010-2020 EXPLOIT
6.9
MEDIUM · CVSS 2.0 · EPSS 0.9% (pctl 58)
Patch early
A public exploit exists.
Description
sys/nfsclient/nfs_vfsops.c in the NFS client in the kernel in FreeBSD 7.2 through 8.1-PRERELEASE, when vfs.usermount is enabled, does not validate the length of a certain fhsize parameter, which allows local users to gain privileges via a crafted mount request.
Scoring
| CVSS | 6.9 (MEDIUM, v2.0) |
|---|---|
| Vector | AV:L/AC:M/Au:N/C:C/I:C/A:C |
| EPSS | 0.87% — more likely to be exploited than 58% of all CVEs |
| Weakness | CWE-20 |
| On CISA KEV | no |
| Public exploit | yes |
| Published | 2010-05-28 |
| Last modified | 2026-06-16 |
Affected (1)
| Vendor | Product |
|---|---|
| freebsd | freebsd |
Public exploits
| Source | Title | Date |
|---|---|---|
| exploit-db | FreeBSD 8.0/7.3/7.2 - 'nfs_mount()' Local Privilege Escalation | 2010-06-23 |
| exploit-db | FreeBSD - 'mountnfs()' Denial of Service | 2010-06-23 |
References
- http://security.FreeBSD.org/advisories/FreeBSD-SA-10:06.nfsclient.asc
- http://securitytracker.com/id?1024039
- http://www.exploit-db.com/exploits/14002
- http://www.exploit-db.com/exploits/14003
- http://security.FreeBSD.org/advisories/FreeBSD-SA-10:06.nfsclient.asc
- http://securitytracker.com/id?1024039
- http://www.exploit-db.com/exploits/14002
- http://www.exploit-db.com/exploits/14003
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