EIP-2026-116108

PRE-CVE

Putty 0.64 - Denial of Service

Title source: legacy
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for EIP-2026-116108. PoCs published by 3unnym00n.

AI-analyzed exploit summary This exploit triggers a denial of service (DoS) in PuTTY v0.64 by sending a malformed DH group exchange reply during SSH key exchange, causing the client to crash. It sets up a fake SSH server to manipulate the handshake process.

Description

Putty 0.64 - Denial of Service

Exploits (1)

exploitdb WORKING POC VERIFIED
by 3unnym00n · pythondoswindows
https://www.exploit-db.com/exploits/37291

This exploit triggers a denial of service (DoS) in PuTTY v0.64 by sending a malformed DH group exchange reply during SSH key exchange, causing the client to crash. It sets up a fake SSH server to manipulate the handshake process.

Classification
Working Poc 90%
Attack Type
Dos
Complexity
Moderate
Reliability
Reliable
Target: PuTTY v0.64
No auth needed
Prerequisites: Network access to the target · PuTTY v0.64 installed on the target
devstral-2 · analyzed Feb 16, 2026 Full analysis →

Details

Status pre_cve
Tracked Since Feb 18, 2026