How severe is CVE-2020-4127?

CVE-2020-4127 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2020-4127 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (37th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-4127?

CVE-2020-4127 primarily affects Hcltech Hcl Domino. In total, 12 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2020-4127?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2020-4127 published?

CVE-2020-4127 was published on 2020-11-30 and last updated on 2026-06-17.

CVE-2020-4127

CVE-2020-4127 is a medium-severity vulnerability in Hcltech Hcl Domino with a CVSS 3.x base score of 6.5. 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-352.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 4.3
EPSS exploit prediction: 0% (37th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-352
Affected product: Hcltech Hcl Domino
Published: 2020-11-30
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2020-4127?: 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.
How severe is CVE-2020-4127?: CVE-2020-4127 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2020-4127 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (37th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-4127?: CVE-2020-4127 primarily affects Hcltech Hcl Domino. In total, 12 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2020-4127?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-4127 published?: CVE-2020-4127 was published on 2020-11-30 and last updated on 2026-06-17.

References

https://support.hcltechsw.com/csm?id=kb_article&sysparm_article=KB0085409

Affected products (12)

cpe:2.3:a:hcltech:hcl_domino:*:*:*:*:*:*:*:*
cpe:2.3:a:hcltech:hcl_domino:9.0.1:-:*:*:*:*:*:*
cpe:2.3:a:hcltech:hcl_domino:9.0.1:feature_pack_10_interim_fix_2:*:*:*:*:*:*
cpe:2.3:a:hcltech:hcl_domino:9.0.1:feature_pack_10_interim_fix_3:*:*:*:*:*:*
cpe:2.3:a:hcltech:hcl_domino:9.0.1:feature_pack_10_interim_fix_4:*:*:*:*:*:*
cpe:2.3:a:hcltech:hcl_domino:9.0.1:feature_pack_10_interim_fix_5:*:*:*:*:*:*
cpe:2.3:a:hcltech:hcl_domino:10.0.1:-:*:*:*:*:*:*
cpe:2.3:a:hcltech:hcl_domino:10.0.1:fixpack1:*:*:*:*:*:*
cpe:2.3:a:hcltech:hcl_domino:10.0.1:fixpack2:*:*:*:*:*:*
cpe:2.3:a:hcltech:hcl_domino:10.0.1:fixpack3:*:*:*:*:*:*
cpe:2.3:a:hcltech:hcl_domino:10.0.1:fixpack4:*:*:*:*:*:*
cpe:2.3:a:hcltech:hcl_domino:10.0.1:fixpack5:*:*:*:*:*:*

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