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TI-2021-22443 Aliases CVE-2021-47827GHSA-cfgg-734h-mqgc

WebSSH for iOS 14.16.10 - 'mashREPL' Denial of Service

Priority MEDIUM 60CWE-1284Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
Active
Attack complexity
Low
Attack requirements
None
Impact type
—
Confidentiality · integrity · availability
None · None · Low
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00437 38th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
WebSSHWebSSH for iOS14.16.10—No fix listedCNA
  • WebSSH for iOS VendorWebSSH Affected 14.16.10 Fixed in — No fix listed CNA

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-47827
  2. 2026-10-03 Alias added: GHSA-cfgg-734h-mqgc

References

Exploit 1

Other 1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences