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CVE-2020-37165— AbsoluteTelnet 11.12 - "license name" 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，该漏洞源于许可证名称输入字段处理不当，可能导致拒绝服务攻击。

CVSS 6.2 · Medium EPSS 0.22% · P13
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I. Basic Information for CVE-2020-37165

Vulnerability Information
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Vulnerability Title
AbsoluteTelnet 11.12 - "license name" Denial of Service
Source: CVE Program / CVE List V5
Vulnerability Description
AbsoluteTelnet 11.12 contains a denial of service vulnerability that allows local attackers to crash the application by supplying an oversized license name. Attackers can generate a 2500-character payload and paste it into the license name field to trigger an application crash.
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，该漏洞源于许可证名称输入字段处理不当，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-2020-37165

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III. Intelligence Information for CVE-2020-37165

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

CVE-2020-37164 6.2 MEDIUM AbsoluteTelnet 11.12 - "license entry" Denial of Service
CVE-2020-37166 6.2 MEDIUM AbsoluteTelnet 11.12 - 'SSH2/username' Denial of Service

IV. Related Vulnerabilities

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

V. Comments for CVE-2020-37165

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