CVE-1999-0393: Remote attackers can cause a denial of service in Sendmail 8.8.x and 8.9.2 by sending messages with a large number of he
Summary
Remote attackers can cause a denial of service in Sendmail 8.8.x and 8.9.2 by sending messages with a large number of headers.
Severity
UNKNOWN
Source Attribution
Source: NVD · Updated: 2026-08-21T04:30:41.669Z · Confidence: high
Impact
Based on CVSS vector: n/a — assess confidentiality, integrity, and availability impact via the official vector documentation.
Affected Software
Fix
Upgrade affected software to the fixed version identified above. Apply vendor patches and monitor advisories before exposed systems go unpatched.