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CVSS v3.1
N/A
EPSS
3.14%
Published
Jun 27, 2000
Modified
Jun 16, 2026
Public PoC / Exploit (1)
All weaponized →Links to public security research (Exploit-DB, Nuclei, Trickest, GitHub) for defensive use only.
Description
FirstClass Internet Services server 5.770, and other versions before 6.1, allows remote attackers to cause a denial of service by sending an email with a long To: mail header.
Affected Products (1)
References (8)