SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2020-4129

HCL Domino is susceptible to a lockout policy bypass vulnerability in the LDAP service.

MEDIUM 5.3EPSS 0.95%

Does this matter?

Lower severity and a low EPSS score (0.95%). Track it; it rarely justifies an emergency change on its own.

Description

HCL Domino is susceptible to a lockout policy bypass vulnerability in the LDAP service. An unauthenticated attacker could use this vulnerability to mount a brute force attack against the LDAP service. Fixes are available in HCL Domino versions 9.0.1 FP10 IF6, 10.0.1 FP6 and 11.0.1 FP1 and later.

CVSS 3.1
5.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
EPSS
0.95% probability · 61th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Affected
hcltech/hcl domino
Source
psirt@hcl.com
EPSS trend
0%3%5%26 October 2026: 0.95%26 October 202626 October 2026

EPSS 0.9% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.