CVE-2002-1777: Symantec Norton Antivirus

High severity, CVSS 7.5. EPSS: 2.6% chance of exploitation in the next 30 days.

NOTE: this issue has been disputed by the vendor. Symantec Norton AntiVirus (NAV) 2002 allows remote attackers to bypass e-mail scanning via a filename in the Content-Type field with an excluded extension such as .nch or .dbx, but a malicious extension in the Content-Disposition field, which is used by Outlook to obtain the file name. NOTE: the vendor has disputed this issue, acknowledging that the initial scan is bypassed, but Norton AntiVirus or the Office plug-in would detect the virus before it is executed

Affected products

• Symantec Norton Antivirus: version 2002 only

Published 2002-12-31. Last modified 2026-06-16.