Unrated severityNVD Advisory· Published Aug 5, 2005· Updated Apr 16, 2026

CVE-2005-2359

Description

The AES-XCBC-MAC algorithm in IPsec in FreeBSD 5.3 and 5.4, when used for authentication without other encryption, uses a constant key instead of the one that was assigned by the system administrator, which can allow remote attackers to spoof packets to establish an IPsec session.

Affected products

FreeBSD/FreeBSD2 versions
cpe:2.3:o:freebsd:freebsd:5.3:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:freebsd:freebsd:5.3:*:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:5.4:*:*:*:*:*:*:*

Patches

No patches discovered yet.

Vulnerability mechanics

AI mechanics synthesis has not run for this CVE yet.

References

secunia.com/advisories/16244/nvdPatchVendor Advisory
ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-05:19.ipsec.ascnvd
securitytracker.com/idnvd
www.securityfocus.com/bid/14394nvd
exchange.xforce.ibmcloud.com/vulnerabilities/21551nvd

News mentions

No linked articles in our index yet.

cvss	0.000
epss	0.000
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000