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CVE-2021-4122: cryptsetup before 2.3.7 (exclusive), from 2.4.0 (inclusive), before 2.4.3 (exclusive), Fixed in cryptsetup 2.4.3…
CVE-2021-4122. CVSS 3.1 base score 4.3 (MEDIUM, NVD). EPSS 0.00312 (percentile 0.22279), scored 13-Oct-2026.
Affected technology
cryptsetup · before 2.3.7 (exclusive)
cryptsetup project
cryptsetup · from 2.4.0 (inclusive), before 2.4.3 (exclusive)
cryptsetup project
cryptsetup · Fixed in cryptsetup 2.4.3, cryptsetup 2.3.7
Vendor not specified by the source
SIMATIC S7-1500 CPU 1518-4 PN/DP MFP · V3.1.0 to before V3.1.5
Siemens
SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP · V3.1.0 to before V3.1.5
Siemens
SIPLUS S7-1500 CPU 1518-4 PN/DP MFP · V3.1.0 to before V3.1.5
Siemens
Component: Not specified by the source
Attack conditions (NVD, CVSS 3.1): Physical access · No privileges required · User interaction required
What an attacker can do
NVD’s CVSS 3.1 assessment (base score 4.3/10) rates confidentiality and availability impact as none; integrity impact as high. The description does not specify what an attacker can achieve beyond these rated impacts.
- CWE
- CWE-345
- CCR priority
- 17.3 /100 (P5)
- CVSS 3.1
- 4.3 /10 · CVSS:3.1/AV:P/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N · NVD
- EPSS
- 0.00312 · percentile 0.22279 · 2026-10-13
- KEV
- no
Provenance
- GitHub Advisory Database · Source record · observed 2026-10-14 16:01:16.619248+00:00 UTC
- NVD CVE API 2.0 · Source record · observed 2026-10-14 15:56:36.793806+00:00 UTC
Stable permalink: https://cybercodered.org/item/cve-cve-2021-4122.html