CVE-2021-20501
HIGH
8.2
CVSS Score
Published: April 21, 2021 at 12:05 PM UTC
Updated: June 17, 2026 at 03:33 AM UTC
1 product affected across 1 vendorI
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Severity
HIGH8.2
Exploit prediction
EPSS 1%
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.
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
References (2)
VDB Entryx_refsource_XFVendor Advisory
Source: [email protected]
https://exchange.xforce.ibmcloud.com/vulnerabilities/198056x_refsource_CONFIRMVendor Advisory
Source: [email protected]
https://www.ibm.com/support/pages/node/6445505CVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- LOW
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
NVD-CWE-noinfo
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