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

published 2020-11-30 5 y ago modified 2026-06-17 4 mo ago also EUVD-2020-25376

cvss: 5.3; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 0.9%; EPSS 0.9% chance of exploitation in 30 days, percentile 61%
public exploits: 0; none known

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.

Patch / fix

fixed in 1

hcltech hcl_domino 9.0.1, 10.0.1, 11.0.1

Exploit prediction

0.95% chance of exploitation in the next 30 days, higher than 61% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
NVD	3.1	5.3	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
NVD	2.0	5.0	AV:N/AC:L/Au:N/C:P/I:N/A:N

Affected products

n/a HCL Domino

References

support.hcltechsw.com /csm?id=kb_article&sysparm_article=KB0085407
vendor-advisory

Sources

CVE List CVE-2020-4129
NVD CVE-2020-4129

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Summary