Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1336 CNY

100%
Buy Us a Coffee

CVE-2020-37166— AbsoluteTelnet 11.12 - 'SSH2/username' Denial of Service

Quick assessment

Affected
Celestial Software AbsoluteTelnet
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Celestial AbsoluteTelnet是美国Celestial公司的一款Telnet/SSH终端客户端软件。 Celestial AbsoluteTelnet 11.12版本存在安全漏洞，该漏洞源于SSH2用户名输入字段存在缓冲区溢出，可能导致拒绝服务攻击。

CVSS 6.2 · Medium EPSS 0.21% · P11
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2020-37166

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
AbsoluteTelnet 11.12 - 'SSH2/username' Denial of Service
Source: CVE Program / CVE List V5
Vulnerability Description
AbsoluteTelnet 11.12 contains a denial of service vulnerability in the SSH2 username input field that allows local attackers to crash the application. Attackers can overwrite the username field with a 1000-byte buffer, causing the application to become unresponsive and terminate.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
未进行输入大小检查的缓冲区拷贝(传统缓冲区溢出)
Source: CVE Program / CVE List V5
Vulnerability Title
Celestial AbsoluteTelnet 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Celestial AbsoluteTelnet是美国Celestial公司的一款Telnet/SSH终端客户端软件。 Celestial AbsoluteTelnet 11.12版本存在安全漏洞，该漏洞源于SSH2用户名输入字段存在缓冲区溢出，可能导致拒绝服务攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Celestial Software AbsoluteTelnet 11.12 -

II. Public POCs for CVE-2020-37166

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2020-37166

请登录查看更多情报信息。

Exploits & Public PoCs for CVE-2020-37166 (1)

Same Patch Batch · Celestial Software · 2026-02-06 · 3 CVEs total

CVE-2020-37165 6.2 MEDIUM AbsoluteTelnet 11.12 - "license name" Denial of Service
CVE-2020-37164 6.2 MEDIUM AbsoluteTelnet 11.12 - "license entry" Denial of Service

IV. Related Vulnerabilities

Same product: AbsoluteTelnet
Same vendor: Celestial Software
Same weakness: CWE-120

V. Comments for CVE-2020-37166

No comments yet

Leave a comment