How severe is CVE-2020-14230?

CVE-2020-14230 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2020-14230 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (66th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-14230?

CVE-2020-14230 primarily affects Hcltech Domino. In total, 13 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2020-14230?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2020-14230 published?

CVE-2020-14230 was published on 2020-11-21 and last updated on 2026-06-17.

CVE-2020-14230

CVE-2020-14230 is a high-severity vulnerability in Hcltech Domino with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-20.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 1% (66th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Hcltech Domino
Published: 2020-11-21
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2020-14230?: 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.
How severe is CVE-2020-14230?: CVE-2020-14230 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2020-14230 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (66th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-14230?: CVE-2020-14230 primarily affects Hcltech Domino. In total, 13 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2020-14230?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2020-14230 published?: CVE-2020-14230 was published on 2020-11-21 and last updated on 2026-06-17.

References

https://support.hcltechsw.com/csm?id=kb_article&sysparm_article=KB0085303

Affected products (13)

cpe:2.3:a:hcltech:domino:*:*:*:*:*:*:*:*
cpe:2.3:a:hcltech:domino:9.0.1:-:*:*:*:*:*:*
cpe:2.3:a:hcltech:domino:9.0.1:feature_pack_10_interim_fix_3:*:*:*:*:*:*
cpe:2.3:a:hcltech:domino:9.0.1:feature_pack_10_interim_fix_4:*:*:*:*:*:*
cpe:2.3:a:hcltech:domino:9.0.1:feature_pack_8:*:*:*:*:*:*
cpe:2.3:a:hcltech:domino:9.0.1:feature_pack_8_interim_fix_1:*:*:*:*:*:*
cpe:2.3:a:hcltech:domino:9.0.1:feature_pack_8_interim_fix_2:*:*:*:*:*:*
cpe:2.3:a:hcltech:domino:9.0.1:feature_pack_8_interim_fix_3:*:*:*:*:*:*
cpe:2.3:a:hcltech:domino:10.0.1:-:*:*:*:*:*:*
cpe:2.3:a:hcltech:domino:10.0.1:fix_pack_1:*:*:*:*:*:*
cpe:2.3:a:hcltech:domino:10.0.1:fix_pack_2:*:*:*:*:*:*
cpe:2.3:a:hcltech:domino:10.0.1:fix_pack_3:*:*:*:*:*:*
cpe:2.3:a:hcltech:domino:10.0.1:fix_pack_4:*:*:*:*:*:*

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