What’s Vulnerable › Vulnerabilities

CVE-2003-0259

• Severity: medium (CVSS 5.0 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2003-05-27 · updated 2026-06-16

Description

Cisco VPN 3000 series concentrators and Cisco VPN 3002 Hardware Client 2.x.x through 3.6.7 allows remote attackers to cause a denial of service (reload) via a malformed SSH initialization packet.

Affected products

• Cisco Vpn 3000 Concentrator Series Software: 2.0, 2.5.2.a, 2.5.2.b, 2.5.2.c, 2.5.2.d, 2.5.2.f (+25)
• Cisco Vpn 3002 Hardware Client: all versions
• Cisco Vpn 3015 Concentrator: all versions
• Cisco Vpn 3030 Concentator: all versions
• Cisco Vpn 3060 Concentrator: all versions
• Cisco Vpn 3080 Concentrator: all versions

References

• http://www.cisco.com/warp/public/707/cisco-sa-20030507-vpn3k.shtml
• http://www.kb.cert.org/vuls/id/317348
• https://exchange.xforce.ibmcloud.com/vulnerabilities/11955
• http://www.cisco.com/warp/public/707/cisco-sa-20030507-vpn3k.shtml
• http://www.kb.cert.org/vuls/id/317348
• https://exchange.xforce.ibmcloud.com/vulnerabilities/11955

Get alerted when CVE-2003-0259 or the next vulnerability affects your stack