CVE-2020-4127

Severity: medium (CVSS 6.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2020-11-30 · updated 2026-06-17
Weakness: CWE-352

Description

HCL Domino is susceptible to a Login CSRF vulnerability. With a valid credential, an attacker could trick a user into accessing a system under another ID or use an intranet user's system to access internal systems from the internet. Fixes are available in HCL Domino versions 9.0.1 FP10 IF6, 10.0.1 FP6 and 11.0.1 FP1 and later.

Affected products

Hcltech 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_2, 9.0.1-feature_pack_10_interim_fix_3, 9.0.1-feature_pack_10_interim_fix_4, 9.0.1-feature_pack_10_interim_fix_5, 10.0.1 (+5) — fixed in 10.0.1, 11.0.1, 9.0.1

How to fix

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

References

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