What is CVE-2020-36995?

CVE-2020-36995 is a high-severity vulnerability in Telnet-Lite Mocha Telnet Lite For Ios, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 7.5/10. Published 2026-01-29.

How severe is CVE-2020-36995?

High severity. CVSS v3 base score is 7.5 out of 10.

Buffer overflow in Telnet-Lite Mocha Telnet Lite For Ios

CVE-2020-36995

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.

Vulnerability class: Buffer Overflow

EPSS: 0.004 (29.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

Affected products

Telnet-lite Mocha Telnet Lite For Ios — versions 4.2

Weakness classification (CWE)

CWE-120 — Buffer Copy without Checking Size of Input (Classic Buffer Overflow)

References

disclosure@vulncheck.com (exploit)
disclosure@vulncheck.com (product)
disclosure@vulncheck.com (third-party-advisory)

Frequently asked questions

What is CVE-2020-36995?: CVE-2020-36995 is a high-severity vulnerability in Telnet-Lite Mocha Telnet Lite For Ios, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 7.5/10. Published 2026-01-29.
How severe is CVE-2020-36995?: High severity. CVSS v3 base score is 7.5 out of 10.