CVE-2020-14244

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 3.0% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2020-12-14 · updated 2026-06-17
Weakness: CWE-787

Description

A vulnerability in the MIME message handling of the Domino server (versions 9 and 10) could potentially be exploited by an unauthenticated attacker resulting in a stack buffer overflow. This could allow a remote attacker to crash the server or inject code into the system which would execute with the privileges of the server.

Affected products

HCL Domino: from 9.0.0 before 10.0.1; 10.0.1-fix_pack_1, 10.0.1-fix_pack_2, 10.0.1-fix_pack_3 — fixed in 10.0.1

How to fix

Upgrade to a fixed version: HCL Domino 10.0.1. Check the vendor advisory for mitigations.

References

https://support.hcltechsw.com/csm?id=kb_article&sysparm_article=KB0085761
https://support.hcltechsw.com/csm?id=kb_article&sysparm_article=KB0085761

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