What’s Vulnerable › Vulnerabilities

CVE-2001-0041

• Severity: high (CVSS 7.8 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 12.1% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2001-02-16 · updated 2026-06-16
• Weakness: CWE-399

Description

Memory leak in Cisco Catalyst 4000, 5000, and 6000 series switches allows remote attackers to cause a denial of service via a series of failed telnet authentication attempts.

Affected products

• Cisco Catos: 4.5(2), 4.5(3), 4.5(4), 4.5(5), 4.5(6), 4.5(7) (+34)

References

• http://www.cisco.com/warp/public/707/catalyst-memleak-pub.shtml
• http://www.osvdb.org/801
• http://www.securityfocus.com/bid/2072
• https://exchange.xforce.ibmcloud.com/vulnerabilities/5656
• http://www.cisco.com/warp/public/707/catalyst-memleak-pub.shtml
• http://www.osvdb.org/801
• http://www.securityfocus.com/bid/2072
• https://exchange.xforce.ibmcloud.com/vulnerabilities/5656

Get alerted when CVE-2001-0041 or the next vulnerability affects your stack