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CVE-2021-20501

8.2 highEPSS 1.3%

High (8.2) in ibm i. EPSS 1.3% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

8.2 high
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
EPSS
1.3% chance of exploitation in the next 30 days; higher than 71% of CVEs (scores of 2026-10-31)
Published
Modified
Record from
the NVD, synced

Affected

References

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