EIP-2026-100691
PRE-CVEMorris Worm - fingerd Stack Buffer Overflow (Metasploit)
Title source: legacyExploitation Summary
EIP tracks 1 public exploit for EIP-2026-100691. PoCs published by Metasploit.
AI-analyzed exploit summary This Metasploit module exploits a stack buffer overflow in the fingerd service on 4.3BSD, leveraging a VAX-specific payload to achieve remote code execution. The exploit is historically significant, as it was used by the Morris worm in 1988.
Description
Morris Worm - fingerd Stack Buffer Overflow (Metasploit)
Exploits (1)
exploitdb
WORKING POC
VERIFIED
by Metasploit · rubyremotebsd
https://www.exploit-db.com/exploits/45791
This Metasploit module exploits a stack buffer overflow in the fingerd service on 4.3BSD, leveraging a VAX-specific payload to achieve remote code execution. The exploit is historically significant, as it was used by the Morris worm in 1988.
Classification
Working Poc 100%
Attack Type
Rce
Complexity
Moderate
Reliability
Reliable
Target:
fingerd on 4.3BSD
No auth needed
Prerequisites:
Target running 4.3BSD with vulnerable fingerd service · Network access to port 79
MITRE ATT&CK
devstral-2 · analyzed Feb 18, 2026
Full analysis →
Details
Status
pre_cve
Tracked Since
Feb 18, 2026