AbsoluteTelnet 11.24 contains a denial of service vulnerability that allows local attackers to crash the application by manipulating username and error report fields. Attackers can trigger the crash by inserting 1000 characters into the username or email address fields, causing the application to become unresponsive.
Advisories

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Fixes

Solution

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Workaround

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History

Thu, 15 Jan 2026 17:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Thu, 15 Jan 2026 16:00:00 +0000

Type Values Removed Values Added
Description AbsoluteTelnet 11.24 contains a denial of service vulnerability that allows local attackers to crash the application by manipulating username and error report fields. Attackers can trigger the crash by inserting 1000 characters into the username or email address fields, causing the application to become unresponsive.
Title AbsoluteTelnet 11.24 - 'Username' Denial of Service (PoC)
Weaknesses CWE-787
References
Metrics cvssV3_1

{'score': 6.2, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

cvssV4_0

{'score': 6.7, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-01-15T16:47:37.283Z

Reserved: 2026-01-14T14:39:44.735Z

Link: CVE-2021-47765

cve-icon Vulnrichment

Updated: 2026-01-15T16:47:34.639Z

cve-icon NVD

Status : Received

Published: 2026-01-15T16:16:07.830

Modified: 2026-01-15T16:16:07.830

Link: CVE-2021-47765

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses