High severity7.5NVD Advisory· Published Jan 16, 2026· Updated Apr 15, 2026

CVE-2021-47827

Description

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.

Patches

No patches discovered yet.

Vulnerability mechanics

AI mechanics synthesis has not run for this CVE yet.

References

apps.apple.com/mx/app/webssh-ssh-client/id497714887nvd
www.exploit-db.com/exploits/49883nvd
www.vulncheck.com/advisories/webssh-for-ios-mashrepl-denial-of-servicenvd

News mentions

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