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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

WebSSH/WebSSH for iOSllm-create
Range: <=14.16.10

Patches

Vulnerability mechanics

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

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