CVE-1999-1532

Netscape Messaging Server 3.54-3.6 - Denial of Service via Long RCPT TO Commands

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-1999-1532. PoCs published by Nobuo Miwa.

AI-analyzed exploit summary This exploit targets a memory leak vulnerability in Netscape Messaging Server 3.6SP2 by sending a large number of long RCPT TO commands, causing the server to consume all available memory and resulting in a denial of service.

Description

Netscape Messaging Server 3.54, 3.55, and 3.6 allows a remote attacker to cause a denial of service (memory exhaustion) via a series of long RCPT TO commands.

Exploits (1)

exploitdb WORKING POC VERIFIED
by Nobuo Miwa · cdosmultiple
https://www.exploit-db.com/exploits/19571

This exploit targets a memory leak vulnerability in Netscape Messaging Server 3.6SP2 by sending a large number of long RCPT TO commands, causing the server to consume all available memory and resulting in a denial of service.

Classification
Working Poc 95%
Attack Type
Dos
Complexity
Trivial
Reliability
Reliable
Target: Netscape Messaging Server 3.6SP2
No auth needed
Prerequisites: Network access to the target SMTP server
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (2)

Core 2
Core References
Mailing List mailing-list x_refsource_bugtraq
http://marc.info/?l=bugtraq&m=94117465014255&w=2
Exploit, Vendor Advisory vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/748

Scores

EPSS 0.0246
EPSS Percentile 82.4%

Details

Status published
Products (3)
netscape/messaging_server 3.6
netscape/messaging_server 3.54
netscape/messaging_server 3.55
Published Oct 29, 1999
Tracked Since Feb 18, 2026