CVE-1999-0006

CRITICAL

Qualcomm qpopper - Buffer Overflow via Long PASS Command

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 2 public exploits for CVE-1999-0006. PoCs published by Miroslaw Grzybek, Seth McGann.

AI-analyzed exploit summary This exploit targets a buffer overflow vulnerability in Qualcomm's qpopper prior to version 2.5. It sends a crafted payload to port 110 (POP3) to achieve remote code execution, providing a root shell.

Description

Buffer overflow in POP servers based on BSD/Qualcomm's qpopper allows remote attackers to gain root access using a long PASS command.

Exploits (2)

exploitdb WORKING POC VERIFIED
by Miroslaw Grzybek · cremoteunix
https://www.exploit-db.com/exploits/19110

This exploit targets a buffer overflow vulnerability in Qualcomm's qpopper prior to version 2.5. It sends a crafted payload to port 110 (POP3) to achieve remote code execution, providing a root shell.

Classification
Working Poc 95%
Attack Type
Rce
Complexity
Moderate
Reliability
Reliable
Target: Qualcomm qpopper < 2.5
No auth needed
Prerequisites: Network access to port 110 (POP3) · Vulnerable version of qpopper
devstral-2 · analyzed Feb 16, 2026 Full analysis →
exploitdb WORKING POC VERIFIED
by Seth McGann · cremotelinux
https://www.exploit-db.com/exploits/19109

This exploit targets a buffer overflow vulnerability in Qualcomm's qpopper versions prior to 2.5. It crafts a malicious payload with NOP sleds and shellcode to achieve remote code execution via a reverse shell.

Classification
Working Poc 95%
Attack Type
Rce
Complexity
Moderate
Reliability
Reliable
Target: Qualcomm qpopper < 2.5
No auth needed
Prerequisites: Network access to the target's POP3 service (port 110) · Vulnerable version of qpopper running on the target
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (2)

Core 2
Core References
Vendor Advisory vendor-advisory x_refsource_sgi
ftp://patches.sgi.com/support/free/security/advisories/19980801-01-I
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/133

Scores

CVSS v3 9.8
EPSS 0.0768
EPSS Percentile 92.1%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact total

Details

CWE
CWE-125
Status published
Products (1)
qualcomm/qpopper 2.4
Published Jul 14, 1998
Tracked Since Feb 18, 2026