CVE-2002-0886

Severity: medium (CVSS 5.0 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 5.4% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2002-10-04 · updated 2026-06-16

Description

Cisco DSL CPE devices running CBOS 2.4.4 and earlier allows remote attackers to cause a denial of service (hang or memory consumption) via (1) a large packet to the DHCP port, (2) a large packet to the Telnet port, or (3) a flood of large packets to the CPE, which causes the TCP/IP stack to consume large amounts of memory.

Affected products

Cisco Cbos: 2.0.1, 2.1.0, 2.1.0a, 2.2.0, 2.2.1, 2.2.1a (+15)

References

http://www.cisco.com/warp/public/707/CBOS-DoS.shtml
http://www.iss.net/security_center/static/9151.php
http://www.iss.net/security_center/static/9153.php
http://www.securityfocus.com/bid/4813
http://www.securityfocus.com/bid/4814
http://www.securityfocus.com/bid/4815
https://exchange.xforce.ibmcloud.com/vulnerabilities/9152
http://www.cisco.com/warp/public/707/CBOS-DoS.shtml
http://www.iss.net/security_center/static/9151.php
http://www.iss.net/security_center/static/9153.php
http://www.securityfocus.com/bid/4813
http://www.securityfocus.com/bid/4814

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