Denial of Service Vulnerability in AbsoluteTelnet 11.12 by Celestial Software
CVE-2020-37165

6.7MEDIUM

Key Information:

Vendor

Celestial Software

Status
Absolutetelnet
Vendor
CVE Published:
6 February 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2020-37165?

AbsoluteTelnet 11.12 is vulnerable to a denial of service attack that can be exploited by a local attacker. By supplying an oversized license name, specifically a payload of up to 2500 characters, an attacker can trigger an application crash, leading to service disruption. This vulnerability highlights the importance of input validation in software applications to prevent potential crashes and maintain service integrity.

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Affected Version(s)

AbsoluteTelnet 11.12

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2020-37165 - Proof of Concept

References

https://www.exploit-db.com/exploits/48006
exploit
https://www.celestialsoftware.net/
product
https://www.vulncheck.com/advisories/absolutetelnet-licen...
third-party-advisory

CVSS V4

Score:
6.7
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

chuyreds
JSON
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