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CVE-2021-47765 (GCVE-0-2021-47765)

Vulnerability from cvelistv5 – Published: 2026-01-15 15:52 – Updated: 2026-10-01 15:19

Title

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

Summary

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.

Severity

6.7 (Medium)


                        
                          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

5.5 (Medium)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-01-15 16:47 UTC

CWE

CWE-787 - Out-of-bounds Write

Assigner

VulnCheck CNA

References

2 references

URL	Tags
https://www.exploit-db.com/exploits/50510	exploit
https://www.celestialsoftware.net/	product

Impacted products

1 product

Vendor	Product	Version
Celestialsoftware	AbsoluteTelnet	Affected: 11.24 cpe:2.3:a:celestialsoftware:absolutetelnet:11.24:::::::*

Date Public

2021-11-10 00:00

Credits

Yehia Elghaly

Show details on NVD website

JSON

To clipboard

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CVE-2021-47764 (GCVE-0-2021-47764)