CVE-2000-0613

Cisco Secure PIX Firewall - Denial of Service via Forged TCP Reset Packets

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2000-0613. PoCs published by Citec Network Securities.

AI-analyzed exploit summary This exploit sends forged TCP RST packets to disrupt connections through a Cisco Secure PIX Firewall by leveraging predictable sequence numbers. It iterates over a range of source and destination ports and spoofed IP addresses to maximize disruption.

Description

Cisco Secure PIX Firewall does not properly identify forged TCP Reset (RST) packets, which allows remote attackers to force the firewall to close legitimate connections.

Exploits (1)

exploitdb WORKING POC VERIFIED
by Citec Network Securities · cremotehardware
https://www.exploit-db.com/exploits/20067

This exploit sends forged TCP RST packets to disrupt connections through a Cisco Secure PIX Firewall by leveraging predictable sequence numbers. It iterates over a range of source and destination ports and spoofed IP addresses to maximize disruption.

Classification
Working Poc 95%
Attack Type
Dos
Complexity
Moderate
Reliability
Reliable
Target: Cisco Secure PIX Firewall
No auth needed
Prerequisites: knowledge of active connection details (IP addresses and ports) · ability to send raw packets
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (5)

Core 5
Core References
Third Party Advisory, VDB Entry vdb-entry x_refsource_osvdb
http://www.osvdb.org/1457
Vendor Advisory vendor-advisory x_refsource_cisco
http://www.cisco.com/warp/public/707/pixtcpreset-pub.shtml
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/1454
Third Party Advisory, VDB Entry vdb-entry x_refsource_xf
https://exchange.xforce.ibmcloud.com/vulnerabilities/4928

Scores

EPSS 0.0918
EPSS Percentile 94.7%

Details

Status published
Products (1)
cisco/pix_firewall
Published Mar 20, 2000
Tracked Since Feb 18, 2026