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CVE Vulnerability Details :
CVE-2021-47827
PUBLISHED
More InfoOfficial Page
Assigner-VulnCheck
Assigner Org ID-83251b91-4cc7-4094-a5c7-464a1b83ea10
View Known Exploited Vulnerability (KEV) details
Published At-16 Jan, 2026 | 19:09
Updated At-16 Jan, 2026 | 21:32
Rejected At-
▼CVE Numbering Authority (CNA)
WebSSH for iOS 14.16.10 - 'mashREPL' Denial of Service

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
Vendor
WebSSH
Product
WebSSH for iOS
Versions
Affected
  • 14.16.10
Problem Types
TypeCWE IDDescription
CWECWE-1284Improper Validation of Specified Quantity in Input
Type: CWE
CWE ID: CWE-1284
Description: Improper Validation of Specified Quantity in Input
Metrics
VersionBase scoreBase severityVector
4.04.6MEDIUM
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
3.17.5HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Version: 4.0
Base score: 4.6
Base severity: MEDIUM
Vector:
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
Version: 3.1
Base score: 7.5
Base severity: HIGH
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
finder
Luis Martinez
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://www.exploit-db.com/exploits/49883
exploit
https://apps.apple.com/mx/app/webssh-ssh-client/id497714887
product
https://www.vulncheck.com/advisories/webssh-for-ios-mashrepl-denial-of-service
third-party-advisory
Hyperlink: https://www.exploit-db.com/exploits/49883
Resource:
exploit
Hyperlink: https://apps.apple.com/mx/app/webssh-ssh-client/id497714887
Resource:
product
Hyperlink: https://www.vulncheck.com/advisories/webssh-for-ios-mashrepl-denial-of-service
Resource:
third-party-advisory
▼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
Details not found