Vulnerability · Published Feb 6, 2026 · Assigned by VulnCheck
CVE-2020-37165AbsoluteTelnet 11.12 - "license name" Denial of Service
Medium 6.2
In plain English
A medium-severity buffer overflow in AbsoluteTelnet from Celestial Software. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 16% of all known vulnerabilities).
Severity (CVSS 3.1)6.2Medium
Exploit odds (30 days)0.2%top 84.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official 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 name field to trigger an application crash.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Celestial Software | AbsoluteTelnet | 11.12 |
Weakness: CWE-120 · Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
References
- ExploitDB-48006 exploit
- Vendor Homepage product
- VulnCheck Advisory: AbsoluteTelnet 11.12 - "license name" Denial of Service third-party-advisory