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CVE-1999-0770

LowPublished

Firewall-1 sets a long timeout for connections that begin with ACK or other packets except SYN, allowing an attacker to conduct a denial of service via a...

Published: Jan 18, 2000
Updated: Aug 1, 2024
Assigning CNA: mitre
Evidence observed: Jul 29, 1999

Primary CVSS

2.1/ 10Low

nvd · CVSS 2.0

AV:L/AC:L/Au:N/C:N/I:N/A:P

EPSS probability estimate

1.1%

Low · next 30 days

Percentile: 63.0%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

Firewall-1 sets a long timeout for connections that begin with ACK or other packets except SYN, allowing an attacker to conduct a denial of service via a large number of connection attempts to unresponsive systems.

Sources

Check Point Software Firewall-1 3.0/1 4.0 - Table Saturation Denial of ServiceExploit
Lance Spitzner · hardware · Jul 29, 1999

Responsible use

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