What’s Vulnerable › Vulnerabilities

CVE-1999-0419

• Severity: medium (CVSS 5.0 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 1999-03-01 · updated 2026-06-16

Description

When the Microsoft SMTP service attempts to send a message to a server and receives a 4xx error code, it quickly and repeatedly attempts to redeliver the message, causing a denial of service.

References

• https://exchange.xforce.ibmcloud.com/vulnerabilities/CVE-1999-0419
• https://exchange.xforce.ibmcloud.com/vulnerabilities/CVE-1999-0419

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