CVE-1999-0896

RealServer G2 - Remote Code Execution via Long Username and Password

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 2 public exploits for CVE-1999-0896. PoCs published by dark spyrit.

AI-analyzed exploit summary This exploit targets a buffer overflow vulnerability in RealNetworks RealServer G2's web administration feature. It sends a maliciously crafted HTTP request with an overly long 'Authorization' header to overflow the buffer and execute arbitrary code.

Description

Buffer overflow in RealNetworks RealServer administration utility allows remote attackers to execute arbitrary commands via a long username and password.

Exploits (2)

exploitdb WORKING POC VERIFIED
by dark spyrit · cremotewindows
https://www.exploit-db.com/exploits/19593

This exploit targets a buffer overflow vulnerability in RealNetworks RealServer G2's web administration feature. It sends a maliciously crafted HTTP request with an overly long 'Authorization' header to overflow the buffer and execute arbitrary code.

Classification
Working Poc 95%
Attack Type
Rce
Complexity
Moderate
Reliability
Reliable
Target: RealNetworks RealServer G2
No auth needed
Prerequisites: Network access to the target server · Knowledge of the randomly selected administration port
devstral-2 · analyzed Feb 16, 2026 Full analysis →
exploitdb WORKING POC VERIFIED
by dark spyrit · assemblyremotewindows
https://www.exploit-db.com/exploits/19592

This exploit targets a buffer overflow vulnerability in RealServer's web administration feature by sending a long authentication response. The shellcode is base64 encoded and designed to execute arbitrary code on the server.

Classification
Working Poc 95%
Attack Type
Rce
Complexity
Moderate
Reliability
Reliable
Target: RealServer (version not specified)
No auth needed
Prerequisites: Network access to the target server · Knowledge of the randomly selected administration port
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (2)

Core 2
Core References
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/767
Various Sources x_refsource_misc
http://service.real.com/help/faq/servg260.html

Scores

EPSS 0.1281
EPSS Percentile 95.8%

Details

Status published
Products (1)
realnetworks/realserver_g2 1.0
Published Nov 04, 1999
Tracked Since Feb 18, 2026