CVE-2002-0886

Cisco CBOS <= 2.4.4 - Denial of Service via Large DHCP or Telnet Packets

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2002-0886. PoCs published by blackangels.

AI-analyzed exploit summary This Perl script is a multi-exploit tool targeting various Cisco vulnerabilities, including CVE-2002-0886, which causes a DoS by consuming memory via large packets. It includes multiple exploit functions for different Cisco vulnerabilities.

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.

Exploits (1)

exploitdb WORKING POC VERIFIED
by blackangels · perldoshardware
https://www.exploit-db.com/exploits/21472

This Perl script is a multi-exploit tool targeting various Cisco vulnerabilities, including CVE-2002-0886, which causes a DoS by consuming memory via large packets. It includes multiple exploit functions for different Cisco vulnerabilities.

Classification
Working Poc 90%
Attack Type
Dos
Complexity
Moderate
Reliability
Reliable
Target: Cisco Broadband Operating System (CBOS) on Cisco 600 series routers
No auth needed
Prerequisites: Network access to the target device
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (7)

Core 7
Core References
Vendor Advisory vendor-advisory x_refsource_cisco
http://www.cisco.com/warp/public/707/CBOS-DoS.shtml
Patch, Vendor Advisory vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/4813
Third Party Advisory, VDB Entry vdb-entry x_refsource_xf
https://exchange.xforce.ibmcloud.com/vulnerabilities/9152
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/4814
Third Party Advisory vdb-entry x_refsource_xf
http://www.iss.net/security_center/static/9153.php
Patch, Vendor Advisory vdb-entry x_refsource_xf
http://www.iss.net/security_center/static/9151.php
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/4815

Scores

EPSS 0.0537
EPSS Percentile 91.6%

Details

Status published
Products (21)
cisco/cbos 2.0.1
cisco/cbos 2.1.0
cisco/cbos 2.1.0a
cisco/cbos 2.2.0
cisco/cbos 2.2.1
cisco/cbos 2.2.1a
cisco/cbos 2.3
cisco/cbos 2.3.2
cisco/cbos 2.3.5
cisco/cbos 2.3.5.015
... and 11 more
Published Oct 04, 2002
Tracked Since Feb 18, 2026