CVE-2020-14230

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2020-11-21 · updated 2026-06-17
Weakness: CWE-20

Description

HCL Domino is susceptible to a Denial of Service vulnerability caused by improper validation of user-supplied input. A remote unauthenticated attacker could exploit this vulnerability using a specially-crafted email message to hang the server. Versions previous to releases 9.0.1 FP10 IF6, 10.0.1 FP5 and 11.0.1 are affected.

Affected products

HCL Domino: before 9.0.1; from 10.0.0 before 10.0.1; from 11.0.0 before 11.0.1; 9.0.1, 9.0.1-feature_pack_10_interim_fix_3, 9.0.1-feature_pack_10_interim_fix_4, 9.0.1-feature_pack_8, 9.0.1-feature_pack_8_interim_fix_1, 9.0.1-feature_pack_8_interim_fix_2 (+6) — fixed in 10.0.1, 11.0.1, 9.0.1

How to fix

Upgrade to a fixed version: HCL Domino 10.0.1, 11.0.1, 9.0.1. Check the vendor advisory for mitigations.

References

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