PT-2026-3040 · Unknown · Absolutetelnet

Yehia Elghaly · CVE-2021-47764 · Published 2026-01-15 · Updated 2026-01-21

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions AbsoluteTelnet version 11.24

Description The software contains a flaw that allows local attackers to cause a denial of service by manipulating the DialUp connection and license name fields. An attacker can craft a 1000-character payload and input it into specific fields, leading to application crashes and unexpected termination. The vulnerable fields are DialUp connection and license name.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

DoS

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

CVE-2021-47764

Affected Products

Absolutetelnet

References · 6

• 🔥 https://exploit-db.com/exploits/50511 · Exploit
• https://osv.dev/vulnerability/CVE-2021-47764 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-47764 · Security Note
• https://twitter.com/CVEnew/status/2011926104416928033 · Twitter Post
• https://t.me/cveNotify/149486 · Telegram Post
• https://celestialsoftware.net · Note