Unrated severityNVD Advisory· Published Jan 15, 2026· Updated Feb 18, 2026
AbsoluteTelnet 11.24 - 'Phone' Denial of Service (PoC)
CVE-2021-47764
Description
AbsoluteTelnet 11.24 contains a denial of service vulnerability that allows local attackers to crash the application by manipulating DialUp connection and license name fields. Attackers can generate a 1000-character payload and paste it into specific input fields to trigger application crashes and force unexpected termination.
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Affected products
1- Celestialsoftware/AbsoluteTelnetv5Range: 11.24
Patches
Vulnerability mechanics
References
2- www.exploit-db.com/exploits/50511mitreexploit
- www.celestialsoftware.netmitreproduct
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