CVE-2020-37164

MEDIUM

AbsoluteTelnet < 11.12 - Denial of Service via Oversized License Name

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2020-37164. PoCs published by chuyreds.

AI-analyzed exploit summary This PoC exploits a local Denial of Service (DoS) vulnerability in AbsoluteTelnet 11.12 by overflowing the 'license name' field with a 2500-byte buffer of 'A' characters, causing the application to crash when pasted into the license key input.

Description

AbsoluteTelnet 11.12 contains a denial of service vulnerability that allows local attackers to crash the application by supplying an oversized license name. Attackers can generate a 2500-character payload and paste it into the license entry field to trigger an application crash.

Exploits (1)

exploitdb WORKING POC
by chuyreds · pythondoswindows
https://www.exploit-db.com/exploits/48005

This PoC exploits a local Denial of Service (DoS) vulnerability in AbsoluteTelnet 11.12 by overflowing the 'license name' field with a 2500-byte buffer of 'A' characters, causing the application to crash when pasted into the license key input.

Classification
Working Poc 95%
Attack Type
Dos
Complexity
Trivial
Reliability
Reliable
Target: AbsoluteTelnet 11.12
No auth needed
Prerequisites: Local access to the target system · Ability to run the Python script and paste the generated payload into the license key input field
devstral-2 · analyzed Feb 18, 2026 Full analysis →

References (3)

Core 3
Core References
Exploit, Third Party Advisory exploit
https://www.exploit-db.com/exploits/48005
Various Sources product
https://www.celestialsoftware.net/

Scores

CVSS v3 6.2
EPSS 0.0022
EPSS Percentile 12.6%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact partial

Details

CWE
CWE-120
Status published
Products (1)
celestialsoftware/absolutetelnet < 11.12
Published Feb 07, 2026
Tracked Since Feb 18, 2026