CVE-2021-47764

AbsoluteTelnet 11.24 - 'Phone' Denial of Service (PoC)

MEDIUM
5.5
CVSS Score
Published: January 15, 2026 at 03:52 PM UTC
Updated: October 1, 2026 at 03:19 PM UTC
2 products affected across 2 vendorsAbsolutetelnetAbsoluteTelnet

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.2%
SSVC
PoC

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (2)

ExploitThird Party Advisory
Source: cverecord
https://www.exploit-db.com/exploits/50511
Product
Source: cverecord
https://www.celestialsoftware.net/

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.5MEDIUMVulnCheck
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-787

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