VULNERABILITY INTELLIGENCE
CVE-2020-4097
CVSS score6.8 MEDIUM
EPSS probability0.32%
CISA KEVNot currently listed
Published2020-11-05
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Description
In HCL Notes version 9 previous to release 9.0.1 FixPack 10 Interim Fix 8, version 10 previous to release 10.0.1 FixPack 6 and version 11 previous to 11.0.1 FixPack 1, a vulnerability in the input parameter handling of the Notes Client could potentially be exploited by an attacker resulting in a buffer overflow. This could enable an attacker to crash HCL Notes or execute attacker-controlled code on the client.
Weakness classification
- CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Primary references
- psirt@hcl.com — Vendor Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Vendor Advisory