Microsoft Exchange SMTP Service 4xx Error Code denial of service

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
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CTI Interest Score
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5.1$0-$5k0.00

Summaryinfo

A vulnerability was found in Microsoft Exchange. It has been rated as problematic. This affects an unknown function of the component SMTP Service. This manipulation as part of 4xx Error Code causes denial of service. The identification of this vulnerability is CVE-1999-0419. There is no exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability has been found in Microsoft Exchange (Groupware Software) (version unknown) and classified as problematic. Affected by this vulnerability is an unknown function of the component SMTP Service. The manipulation as part of a 4xx Error Code leads to a denial of service vulnerability. The CWE definition for the vulnerability is CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. As an impact it is known to affect availability. The summary by CVE is:

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.

The weakness was shared 03/01/1999. This vulnerability is known as CVE-1999-0419. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available.

Upgrading eliminates this vulnerability.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

03/01/1999 🔍
03/01/1999 +0 days 🔍
06/20/2014 +5590 days 🔍
04/18/2026 +4320 days 🔍

Sourcesinfo

Vendor: microsoft.com

Status: Confirmed

CVE: CVE-1999-0419 (🔍)
GCVE (CVE): GCVE-0-1999-0419
GCVE (VulDB): GCVE-100-14539

Entryinfo

Created: 06/20/2014 17:21
Updated: 04/18/2026 17:39
Changes: 06/20/2014 17:21 (35), 04/04/2019 11:22 (10), 04/18/2026 17:39 (18)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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