CVE-1999-0419
UnknownEPSS 1.40%
Last modified
CVE-1999-0419 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 1.40% chance of exploitation in the next 30 days.
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.
Metrics
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| — | — | n/a |
References
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-1999-0419?
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.
How severe is CVE-1999-0419?
Severity scoring for CVE-1999-0419 is pending analysis. The EPSS model estimates a 1.40% probability of exploitation in the next 30 days.
How do I fix CVE-1999-0419?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
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Are you affected by CVE-1999-0419?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST