Strix
26.1K

CVE-2004-0551

UnknownEPSS 3.13%

Last modified

CVE-2004-0551 is a vulnerability of currently unknown severity. Cisco CatOS 5.x before 5.5(20) through 8.x before 8.2(2) and 8.3(2)GLX, as used in Catalyst switches, allows remote attackers to cause a denial of service (system crash and reload) by sending invalid packets instead of the final ACK portion of the three-way handshake to the (1) Telnet, (2) HTTP, or (3) SSH services, aka "TCP-ACK DoS attack.". EPSS estimates a 3.13% chance of exploitation in the next 30 days.

Description

Cisco CatOS 5.x before 5.5(20) through 8.x before 8.2(2) and 8.3(2)GLX, as used in Catalyst switches, allows remote attackers to cause a denial of service (system crash and reload) by sending invalid packets instead of the final ACK portion of the three-way handshake to the (1) Telnet, (2) HTTP, or (3) SSH services, aka "TCP-ACK DoS attack."

Metrics

EPSS Probability
3.13%

86.2th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

VendorProductVersions
CiscoCatos2.1\(1\)
CiscoCatos2.1\(2\)
CiscoCatos2.1\(3\)
CiscoCatos2.1\(4\)
CiscoCatos2.1\(5\)
CiscoCatos2.1\(6\)
CiscoCatos2.1\(7\)
CiscoCatos2.1\(8\)
CiscoCatos2.1\(9\)
CiscoCatos2.1\(10\)
CiscoCatos2.1\(11\)
CiscoCatos2.1\(12\)
CiscoCatos2.2\(1\)
CiscoCatos2.2\(2\)
CiscoCatos2.3\(1\)
CiscoCatos2.4\(1\)
CiscoCatos2.4\(2\)
CiscoCatos2.4\(3\)
CiscoCatos2.4\(4\)
CiscoCatos2.4\(5\)
CiscoCatos2.4\(5a\)
CiscoCatos3.0\(7\)
CiscoCatos3.1\(1\)
CiscoCatos3.1\(2\)
CiscoCatos3.1\(2a\)
CiscoCatos3.2\(1\)
CiscoCatos3.2\(1b\)
CiscoCatos3.2\(2\)
CiscoCatos3.2\(3\)
CiscoCatos3.2\(4\)
CiscoCatos3.2\(5\)
CiscoCatos3.2\(6\)
CiscoCatos3.2\(7\)
CiscoCatos3.2\(8\)gdr
CiscoCatos4.1\(1\)
CiscoCatos4.1\(2\)
CiscoCatos4.1\(3\)
CiscoCatos4.2\(1\)
CiscoCatos4.2\(2\)
CiscoCatos4.3\(1a\)
CiscoCatos4.4\(1\)
CiscoCatos4.5\(1\)
CiscoCatos4.5\(2\)
CiscoCatos4.5\(3\)
CiscoCatos4.5\(4\)
CiscoCatos4.5\(5\)
CiscoCatos4.5\(6\)
CiscoCatos4.5\(6a\)
CiscoCatos4.5\(7\)
CiscoCatos4.5\(8\)

Showing 50 of 238 affected configurations. See NVD for the full list.

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2004-0551?
Cisco CatOS 5.x before 5.5(20) through 8.x before 8.2(2) and 8.3(2)GLX, as used in Catalyst switches, allows remote attackers to cause a denial of service (system crash and reload) by sending invalid packets instead of the final ACK portion of the three-way handshake to the (1) Telnet, (2) HTTP, or (3) SSH services, aka "TCP-ACK DoS attack."
How severe is CVE-2004-0551?
Severity scoring for CVE-2004-0551 is pending analysis. The EPSS model estimates a 3.13% probability of exploitation in the next 30 days.
How do I fix CVE-2004-0551?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2004-0551?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST