CVE-1999-0770

Low CVSS 2.1

Published 1999-07-29 · last changed 2026-06-16

The fix

We hold no Microsoft remediation data for CVE-1999-0770, which normally means it is not a Windows CVE. For non-Microsoft software the fix is the vendor's own updated release, and the affected versions are listed below.

What it is

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

NVD record for CVE-1999-0770

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