Mocha Telnet Lite for iOS 4.2 contains a denial of service vulnerability that allows attackers to crash the application by manipulating the user configuration input. Attackers can overwrite the 'User' field with 350 bytes of repeated characters to trigger an application crash and prevent normal functionality.

Metrics

Attack Vector Local

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction Active

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact Low

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact None

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00022.

Exploitation poc

Automatable yes

Technical Impact partial

Affected Vendors & Products

Vendors Products
Telnet-lite Subscribe
Mocha Telnet Lite Subscribe

No data.

No data.

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Vendors Products
Telnet-lite Subscribe
Mocha Telnet Lite Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://apps.apple.com/us/app/telnet-lite/id286893976 cve-icon cve-icon
https://www.exploit-db.com/exploits/48728 cve-icon cve-icon
https://www.vulncheck.com/advisories/mocha-telnet-lite-for-ios-user-denial-of-service cve-icon cve-icon
History

Fri, 30 Jan 2026 09:00:00 +0000

Type Values Removed Values Added
First Time appeared Telnet-lite
Telnet-lite mocha Telnet Lite
Vendors & Products Telnet-lite
Telnet-lite mocha Telnet Lite

Thu, 29 Jan 2026 17:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Thu, 29 Jan 2026 14:45:00 +0000

Type Values Removed Values Added
Description Mocha Telnet Lite for iOS 4.2 contains a denial of service vulnerability that allows attackers to crash the application by manipulating the user configuration input. Attackers can overwrite the 'User' field with 350 bytes of repeated characters to trigger an application crash and prevent normal functionality.
Title Mocha Telnet Lite for iOS 4.2 - 'User' Denial of Service
Weaknesses CWE-120
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N'}

cvssV4_0

{'score': 0, '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'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-01-29T16:03:31.482Z

Reserved: 2026-01-27T15:47:08.000Z

Link: CVE-2020-36995

cve-icon Vulnrichment

Updated: 2026-01-29T16:02:44.091Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-01-29T15:16:05.967

Modified: 2026-01-29T16:31:00.867

Link: CVE-2020-36995

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-01-30T08:42:56Z

Weaknesses