VULNERABILITY INTELLIGENCE
CVE-1999-1228
CVSS score7.5 HIGH
EPSS probability1.91%
CISA KEVNot currently listed
Published1998-09-27
Last modified2026-06-16
CVSS vectorAV:N/AC:L/Au:N/C:P/I:P/A:P
Description
Various modems that do not implement a guard time, or are configured with a guard time of 0, can allow remote attackers to execute arbitrary modem commands such as ATH, ATH0, etc., via a "+++" sequence that appears in ICMP packets, the subject of an e-mail message, IRC commands, and others.