CVE-2026-4115

Published: Mar 22, 2026 Last Modified: Mar 22, 2026

ExploitDB:

Other exploit source:

Google Dorks:

MEDIUM 6,3

Source: [email protected]

Attack Vector: network

Attack Complexity: high

Privileges Required: none

User Interaction: none

Confidentiality: N/A

Integrity: N/A

Availability: N/A

LOW 3,7

Source: [email protected]

Attack Vector: network

Attack Complexity: high

Privileges Required: none

User Interaction: none

Scope: unchanged

Confidentiality: none

Integrity: low

Availability: none

LOW 2,6

Source: [email protected]

Access Vector: network

Access Complexity: high

Authentication: none

Confidentiality: none

Integrity: partial

Availability: none

Description

AI Translation Available

A vulnerability was detected in PuTTY 0.83. Affected is the function eddsa_verify of the file crypto/ecc-ssh.c of the component Ed25519 Signature Handler. The manipulation results in improper verification of cryptographic signature. The attack may be performed from remote. The attack requires a high level of complexity. The exploitability is told to be difficult. The exploit is now public and may be used. The real existence of this vulnerability is still doubted at the moment. The patch is identified as af996b5ec27ab79bae3882071b9d6acf16044549. It is advisable to implement a patch to correct this issue. The vendor was contacted early, responded in a very professional manner and quickly released a patch for the affected product. However, at the moment there is no proof that this flaw might have any real-world impact.