CVE-2004-0551
No known exploitation. EPSS puts it in the 87th percentile. No fix published yet.
What to do
No fixed build or workaround is published yet. Limit exposure and watch for a patch.
What it is
From the CVE record
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."
In plain language
No plain-language summary for this CVE yet.
Exploitation
Where each signal puts this CVE on the scale from published to confirmed exploited.
- CISA KEV
Not in the catalog. CISA has not confirmed exploitation.
- Public exploits
No public exploit or proof of concept found in the sources we track.
- EPSS
3.1% chance of exploitation activity in the next 30 days, which ranks it in the 87th percentile of scored CVEs.
Exploit Prediction Scoring System, FIRST.org. A probability, not a confirmation.
Lifecycle
3 events over 7975 days, from the signal feeds we watch.
- Record updated
- Publishedweakness classified
Affected products
- catosNetworking Infrastructure
- catalyst 2901Networking Infrastructure
- catalyst 2902Networking Infrastructure
- catalyst 2926Networking Infrastructure
- catalyst 2926fNetworking Infrastructure
- catalyst 2926glNetworking Infrastructure
- catalyst 2926gsNetworking Infrastructure
- catalyst 2926tNetworking Infrastructure
And 17 more affected products. See all after sign-in
Technical detail
CVSS 2.0 vector
Open in the CVSS calculatorAV:N/AC:L/Au:N/C:N/I:N/A:P
Scored 5.0 by NVD.
How it is reached
- Access Vector NetworkExploitable remotely over the network
- Access Complexity LowNo special conditions required
- Authentication NoneNo authentication required
Impact if exploited
- Confidentiality NoneNo confidentiality impact
- Integrity NoneNo integrity impact
- Availability PartialReduced performance or service disruption
Weaknesses
Sources
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