CVE-1999-1228

HIGH 7.5CVE-1999-1228 · Published 27/09/1998 · updated 16/06/2026

In short

CVE-1999-1228 is a HIGH (CVSS 7.5) vulnerability affecting quicktel (logicode).
Chance of exploitation in the next 30 days (EPSS): 1.9%, higher than 79.9% of all vulnerabilities.
No patched version is listed yet: follow the vendor's advisory in References.

Package	Affected versions	Patched versions
quicktel logicode	`= 28.8`	No fix yet

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.

References

marc.info
macintouch.com/modemsecurity.html · Vendor Advisory
exchange.xforce.ibmcloud.com/vulnerabilities/3320

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