CVE-2023-6240

MEDIUM 6.5

Kernel: marvin vulnerability side-channel leakage in the rsa decryption operation

CVSS Score

6.5

EPSS Score

0.0%

EPSS Percentile

0th

A Marvin vulnerability side-channel leakage was found in the RSA decryption operation in the Linux Kernel. This issue may allow a network attacker to decrypt ciphertexts or forge signatures, limiting the services that use that private key.

CWE	CWE-203
Vendor	red hat
Product	red hat enterprise linux 8
Published	Feb 4, 2024
Last Updated	Nov 8, 2025

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

Low

Availability

None

Affected Versions

Red Hat / Red Hat Enterprise Linux 8

All versions affected

Red Hat / Red Hat Enterprise Linux 8

All versions affected

Red Hat / Red Hat Enterprise Linux 9

All versions affected

Red Hat / Red Hat Enterprise Linux 9

All versions affected

Red Hat / Red Hat Enterprise Linux 9.0 Extended Update Support

All versions affected

Red Hat / Red Hat Enterprise Linux 9.0 Extended Update Support

All versions affected

Red Hat / Red Hat Enterprise Linux 9.2 Extended Update Support

All versions affected

Red Hat / Red Hat Enterprise Linux 9.2 Extended Update Support

All versions affected

Red Hat / Red Hat Enterprise Linux 6

All versions affected

Red Hat / Red Hat Enterprise Linux 7

All versions affected

Red Hat / Red Hat Enterprise Linux 7

All versions affected

Red Hat / Red Hat Enterprise Linux 9

All versions affected

References

NVD ↗ CVE.org ↗ EPSS Data ↗