CVE-2003-1266

etype eserv 2.92-2.98 - Denial of Service via Large Data Input

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 4 public exploits for CVE-2003-1266. PoCs published by D4rkGr3y.

AI-analyzed exploit summary This Perl script exploits a denial-of-service (DoS) vulnerability in EServ proxy software by repeatedly sending TCP connections to the target host and port, causing the service to crash due to resource exhaustion.

Description

The (1) FTP, (2) POP3, (3) SMTP, and (4) NNTP servers in EServer 2.92 through 2.97, and possibly 2.98, allow remote attackers to cause a denial of service (crash) via a large amount of data.

Exploits (4)

exploitdb WORKING POC VERIFIED
by D4rkGr3y · perldoswindows
https://www.exploit-db.com/exploits/22123

This Perl script exploits a denial-of-service (DoS) vulnerability in EServ proxy software by repeatedly sending TCP connections to the target host and port, causing the service to crash due to resource exhaustion.

Classification
Working Poc 90%
Attack Type
Dos
Complexity
Trivial
Reliability
Reliable
Target: EServ proxy software (version not specified)
No auth needed
Prerequisites: Network access to the target host and port
devstral-2 · analyzed Feb 16, 2026 Full analysis →
exploitdb WORKING POC VERIFIED
by D4rkGr3y · perldoswindows
https://www.exploit-db.com/exploits/22122

This Perl script exploits a denial-of-service (DoS) vulnerability in EServ proxy software by repeatedly sending large amounts of data via POP3, causing the software to crash. The exploit establishes continuous TCP connections to the target host and port, overwhelming the service.

Classification
Working Poc 90%
Attack Type
Dos
Complexity
Trivial
Reliability
Reliable
Target: EServ proxy software (version not specified)
No auth needed
Prerequisites: Network access to the target host · Target running EServ proxy software with vulnerable POP3 service
devstral-2 · analyzed Feb 16, 2026 Full analysis →
exploitdb WORKING POC VERIFIED
by D4rkGr3y · perldoswindows
https://www.exploit-db.com/exploits/22121

This Perl script exploits a denial-of-service (DoS) vulnerability in EServ proxy software by repeatedly sending TCP connections to the target host and port, causing the service to crash due to resource exhaustion.

Classification
Working Poc 90%
Attack Type
Dos
Complexity
Trivial
Reliability
Reliable
Target: EServ proxy software (version not specified)
No auth needed
Prerequisites: Network access to the target host and port
devstral-2 · analyzed Feb 16, 2026 Full analysis →
exploitdb WORKING POC VERIFIED
by D4rkGr3y · perldoswindows
https://www.exploit-db.com/exploits/22124

This Perl script exploits a denial-of-service (DoS) vulnerability in EServ proxy software by repeatedly sending large amounts of data via NNTP, causing the software to crash. The exploit establishes continuous TCP connections to the target host and port, overwhelming the service.

Classification
Working Poc 90%
Attack Type
Dos
Complexity
Trivial
Reliability
Reliable
Target: EServ proxy software (version not specified)
No auth needed
Prerequisites: Network access to the target host · EServ proxy software running on the target
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (6)

Core 6
Core References
Exploit, Patch vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/6519
Exploit, Patch mailing-list x_refsource_bugtraq
http://archives.neohapsis.com/archives/bugtraq/2003-01/0022.html
Exploit, Patch vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/6521
Exploit, Patch vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/6522
Exploit, Patch vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/6520

Scores

EPSS 0.0394
EPSS Percentile 89.1%

Details

Status published
Products (7)
etype/eserv 2.92
etype/eserv 2.93
etype/eserv 2.94
etype/eserv 2.95
etype/eserv 2.96
etype/eserv 2.97
etype/eserv 2.98
Published Dec 31, 2003
Tracked Since Feb 18, 2026