What’s Vulnerable › Vulnerabilities

CVE-2020-36995: Mocha Telnet Lite for iOS 4.2 - 'User' Denial of Service

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-01-29 · updated 2026-06-17
• Weakness: CWE-120

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.

Affected products

• telnet-lite Mocha Telnet Lite for iOS: 4.2

References

• https://apps.apple.com/us/app/telnet-lite/id286893976
• https://www.exploit-db.com/exploits/48728
• https://www.vulncheck.com/advisories/mocha-telnet-lite-for-ios-user-denial-of-service

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