CVE-2026-4541
LOWjanmojzis tinyssh Ed25519 Signature crypto_sign_ed25519_tinyssh.c signature verification
Title source: cnaDescription
A flaw has been found in janmojzis tinyssh up to 20250501. Impacted is an unknown function of the file tinyssh/crypto_sign_ed25519_tinyssh.c of the component Ed25519 Signature Handler. This manipulation causes improper verification of cryptographic signature. The attack is restricted to local execution. The attack's complexity is rated as high. The exploitability is considered difficult. The exploit has been published and may be used. Upgrading to version 20260301 is recommended to address this issue. Patch name: 9c87269607e0d7d20174df742accc49c042cff17. Upgrading the affected component is recommended.
Scores
CVSS v3
2.5
EPSS
0.0000
EPSS Percentile
0.0%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
partial
Details
CWE
CWE-345
CWE-347
Status
published
Products (2)
janmojzis/tinyssh
20250501
janmojzis/tinyssh
20260301
Published
Mar 22, 2026
Tracked Since
Mar 22, 2026