CVE-2009-3517
nfs.ext in IBM AIX 5.3.x through 5.3.9 and 6.1.0 through 6.1.2 does not properly use the nfs_portmon setting, which allows remote attackers to bypass intended access restrictions for NFSv4 shares via unspecified vectors.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (4.35%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
nfs.ext in IBM AIX 5.3.x through 5.3.9 and 6.1.0 through 6.1.2 does not properly use the nfs_portmon setting, which allows remote attackers to bypass intended access restrictions for NFSv4 shares via unspecified vectors.
- CVSS 2.0
- 10.0 HIGHAV:N/AC:L/Au:N/C:C/I:C/A:C
- EPSS
- 4.35% probability · 91th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Affected
- ibm/aix
- Source
- cve@mitre.org
EPSS 4.4% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://aix.software.ibm.com/aix/efixes/security/nfs4_advisory.ascPatch, Vendor Advisory
- http://www-01.ibm.com/support/docview.wss?uid=isg1IZ49024Vendor Advisory
- http://www-01.ibm.com/support/docview.wss?uid=isg1IZ49096Vendor Advisory
- http://www-01.ibm.com/support/docview.wss?uid=isg1IZ49278
- http://www-01.ibm.com/support/docview.wss?uid=isg1IZ50399Vendor Advisory
- http://www-01.ibm.com/support/docview.wss?uid=isg1IZ50444Vendor Advisory
- http://www-01.ibm.com/support/docview.wss?uid=isg1IZ50496Vendor Advisory
- http://www.securityfocus.com/bid/36544Patch
- http://www.vupen.com/english/advisories/2009/2788Vendor Advisory
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6366
- http://aix.software.ibm.com/aix/efixes/security/nfs4_advisory.ascPatch, Vendor Advisory
- http://www-01.ibm.com/support/docview.wss?uid=isg1IZ49024Vendor Advisory
- http://www-01.ibm.com/support/docview.wss?uid=isg1IZ49096Vendor Advisory
- http://www-01.ibm.com/support/docview.wss?uid=isg1IZ49278
- http://www-01.ibm.com/support/docview.wss?uid=isg1IZ50399Vendor Advisory
- http://www-01.ibm.com/support/docview.wss?uid=isg1IZ50444Vendor Advisory
- http://www-01.ibm.com/support/docview.wss?uid=isg1IZ50496Vendor Advisory
- http://www.securityfocus.com/bid/36544Patch
- http://www.vupen.com/english/advisories/2009/2788Vendor Advisory
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6366
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.