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CVE-2021-20501

Quick assessment

Affected
IBM i
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.

IBM i是美国IBM公司的一套运行在IBM Power Systems和IBM PureSystems中的操作系统。 IBM i SMTP 存在安全漏洞，攻击者消耗不必要的网络带宽和磁盘空间，并发送垃圾邮件。

AI Predicted 5.3 Difficulty: Trivial EPSS 1.34% · P69
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I. Basic Information for CVE-2021-20501

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
IBM i 7.1, 7.2, 7.3, and 7.4 SMTP allows a network attacker to send emails to non-existent local-domain recipients to the SMTP server, caused by using a non-default configuration. An attacker could exploit this vulnerability to consume unnecessary network bandwidth and disk space, and allow remote attackers to send spam email. IBM X-Force ID: 198056.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
IBM i 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
IBM i是美国IBM公司的一套运行在IBM Power Systems和IBM PureSystems中的操作系统。 IBM i SMTP 存在安全漏洞，攻击者消耗不必要的网络带宽和磁盘空间，并发送垃圾邮件。
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
IBM i 7.1 -

II. Public POCs for CVE-2021-20501

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III. Intelligence Information for CVE-2021-20501

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Vendor Advisories for CVE-2021-20501 (2)

IV. Related Vulnerabilities

Same product: i
Same vendor: IBM

V. Comments for CVE-2021-20501

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