CVE-1999-1185

SCO mscreen - Buffer Overflow via Long TERM Entry in .mscreenrc File

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-1999-1185. PoCs published by K2.

AI-analyzed exploit summary This exploit targets a buffer overflow vulnerability in SCO OpenServer's mscreen utility. It uses shellcode to spawn a shell by overflowing the TERM environment variable.

Description

Buffer overflow in SCO mscreen allows local users to gain root privileges via a long terminal entry (TERM) in the .mscreenrc file.

Exploits (1)

exploitdb WORKING POC VERIFIED
by K2 · clocalsco
https://www.exploit-db.com/exploits/261

This exploit targets a buffer overflow vulnerability in SCO OpenServer's mscreen utility. It uses shellcode to spawn a shell by overflowing the TERM environment variable.

Classification
Working Poc 95%
Attack Type
Rce
Complexity
Moderate
Reliability
Reliable
Target: SCO OpenServer mscreen (tested on 5.0.5)
No auth needed
Prerequisites: Access to the target system · Ability to execute the compiled binary
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (2)

Core 2
Core References
Third Party Advisory, VDB Entry vdb-entry x_refsource_xf
https://exchange.xforce.ibmcloud.com/vulnerabilities/1379
Mailing List mailing-list x_refsource_bugtraq
http://marc.info/?l=bugtraq&m=90686250717719&w=2

Scores

EPSS 0.0083
EPSS Percentile 52.9%

Details

Status published
Products (6)
sco/cmw 3.0
sco/internet_faststart all_versions
sco/open_desktop 3.0
sco/openserver 3.0
sco/openserver 5.0
sco/openserver_enterprise_system 5.0.4p
Published Oct 06, 1998
Tracked Since Feb 18, 2026