CVE-2007-1586

ZynOS 3.40 - Denial of Service via SMB Mail Slot Protocol

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2007-1586. PoCs published by Joxean Koret.

AI-analyzed exploit summary This exploit targets a denial-of-service vulnerability in Zyxel routers running ZynOS 3.40. It leverages a malformed SMB MailSlot request to crash the device, disrupting network services.

Description

ZynOS 3.40 allows remote attackers to cause a denial of service (link restart) by sending a request for the name \M via the SMB Mail Slot Protocol.

Exploits (1)

exploitdb WORKING POC VERIFIED
by Joxean Koret · textdoshardware
https://www.exploit-db.com/exploits/29767

This exploit targets a denial-of-service vulnerability in Zyxel routers running ZynOS 3.40. It leverages a malformed SMB MailSlot request to crash the device, disrupting network services.

Classification
Working Poc 90%
Attack Type
Dos
Complexity
Trivial
Reliability
Reliable
Target: Zyxel ZynOS version 3.40
No auth needed
Prerequisites: Network access to the vulnerable router
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (4)

Core 4
Core References
Third Party Advisory, VDB Entry vdb-entry x_refsource_osvdb
http://osvdb.org/34522
Exploit vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/23061
Third Party Advisory, VDB Entry mailing-list x_refsource_bugtraq
http://www.securityfocus.com/archive/1/463238/100/0/threaded
Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack
http://securitytracker.com/id?1017795

Scores

EPSS 0.0309
EPSS Percentile 86.0%

Details

Status published
Products (1)
zyxel/zynos 3.40
Published Mar 21, 2007
Tracked Since Feb 18, 2026