CVE-2020-4126

mediumpriority · track · 24OT risk · elevatedEPSS 0.007 · 52 %ileEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.67% (52nd) EPSS

CVSS 4.3 · medium

Is it mine?

5 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · nvd

EPSS · scored 2026-10-28

HCL iNotes is susceptible to a sensitive cookie exposure vulnerability. This can allow an unauthenticated remote attacker to capture the cookie by intercepting its transmission within an http session. Fixes are available in HCL Domino and iNotes versions 10.0.1 FP6 and 11.0.1 FP2 and later.

cvss

Technical severity, 0–10. One row per scoring source.

5.9

010

base score 0–10 · higher = more severe · hover a vector to decode

v2.04.3mediumAV:N/AC:M/Au:N/C:P/I:N/A:Nprimary · NVD / NIST USexploitability 8.6 · impact 2.9

v3.15.9mediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:Nprimary · NVD / NIST USexploitability 2.2 · impact 3.6

v3.15.4mediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-311USprimary

affected products (5)

Products and version ranges known to be affected.

n/a HCL iNotes≤ v10.0.1 FP6, v11.0.1 FP2 and laterenisa_euvdEU
hcltech hcl inotes= 10.0.1nvdUScpe:2.3:a:hcltech:hcl_inotes:*:*:*:*:*:*:*:*
hcltech hcl inotes11.0.0 → 11.0.1nvdUScpe:2.3:a:hcltech:hcl_inotes:*:*:*:*:*:*:*:*
hcltech hcl inotes= 11.0.1nvdUScpe:2.3:a:hcltech:hcl_inotes:*:*:*:*:*:*:*:*
hcltech hcl inotes9.0 → 10.0.1nvdUScpe:2.3:a:hcltech:hcl_inotes:*:*:*:*:*:*:*:*

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd NVD CVE.org MITRE

published 2020-12-01modified 2026-06-17

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+763 more

references (6)

External citations — patches, advisories, analysis.

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