PT-2026-6832 · Unknown · Absolutetelnet

Chuyreds · Published 2026-02-06 · Updated 2026-02-19 · CVE-2020-37166

Positive Technologies (AI Summary)

CVSS v3.1

6.2

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions AbsoluteTelnet version 11.12

Description The software contains a denial of service issue in the SSH2 username input field. Local attackers can cause the application to crash by overwriting the username field with a 1000-byte buffer, leading to unresponsiveness and termination. The affected API endpoint is related to SSH2 username input.

Recommendations Update to a newer version that contains a fix for this vulnerability. As a temporary workaround, restrict the length of the username input field to less than 1000 bytes.

Exploit

Fix

DoS

Buffer Overflow

Weakness Enumeration

CWE-120

Related Identifiers

CVE-2020-37166

Affected Products

Absolutetelnet

References · 7

• 🔥 https://exploit-db.com/exploits/48010 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2020-37166 · Security Note
• https://osv.dev/vulnerability/CVE-2020-37166 · Vendor Advisory
• https://celestialsoftware.net · Note
• https://t.me/cveNotify/152493 · Telegram Post
• https://t.me/CVEtracker/43995 · Telegram Post
• https://vulncheck.com/advisories/absolutetelnet-sshusername-denial-of-service · Note