CVE-2021-47827: Webssh For IOS

High severity, CVSS 7.5. EPSS: 0.4% chance of exploitation in the next 30 days.

WebSSH for iOS 14.16.10 contains a denial of service vulnerability in the mashREPL tool that allows attackers to crash the application by pasting malformed input. Attackers can trigger the vulnerability by copying a 300-character buffer of repeated 'A' characters into the mashREPL input field, causing the application to crash.

Affected products

• Webssh Webssh For IOS: version 14.16.10 only

Published 2026-01-16. Last modified 2026-06-17.