What’s Vulnerable › Vulnerabilities

CVE-2001-0055

• Severity: medium (CVSS 5.0 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2001-02-16 · updated 2026-06-16

Description

CBOS 2.4.1 and earlier in Cisco 600 routers allows remote attackers to cause a denial of service via a slow stream of TCP SYN packets.

Affected products

• Cisco Broadband Operating System: through 2.3.8
• Cisco 6Xx Routers: all versions

References

• http://www.cisco.com/warp/public/707/CBOS-multiple.shtml
• https://exchange.xforce.ibmcloud.com/vulnerabilities/5627
• http://www.cisco.com/warp/public/707/CBOS-multiple.shtml
• https://exchange.xforce.ibmcloud.com/vulnerabilities/5627

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