CVE-2020-37164: Celestialsoftware Absolutetelnet

Medium severity, CVSS 5.5. EPSS: 0.3% chance of exploitation in the next 30 days.

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.

Affected products

• Celestialsoftware Absolutetelnet: up to and including 11.12

Published 2026-02-07. Last modified 2026-06-17.