CVE-2026-31590: Undefined Security Weakness

🗓️ 24 Apr 2026 00:00:00Reported by Rapid7Type

rapid7🔗 www.rapid7.com

Linux kernel KVM SEV sev_pin_memory drops WARN on large size via KVM_MEMORY_ENCRYPT_REG_REGION.

Reporter	Title	Published	Views	Family All 163
attackerkb	CVE-2026-31590	24 Apr 202614:42	–	attackerkb
Tenable Nessus	Amazon Linux 2023 : bpftool, kernel, kernel-devel (ALAS2023-2026-1882)	22 Jun 202600:00	–	nessus
Tenable Nessus	Amazon Linux 2 : kernel, --advisory ALAS2KERNEL-5.10-2026-123 (ALASKERNEL-5.10-2026-123)	22 Jun 202600:00	–	nessus
Tenable Nessus	Amazon Linux 2 : kernel, --advisory ALAS2KERNEL-5.15-2026-107 (ALASKERNEL-5.15-2026-107)	22 Jun 202600:00	–	nessus
Tenable Nessus	Debian dla-4664 : ata-modules-5.10.0-43-armmp-di - security update	3 Jul 202600:00	–	nessus
Tenable Nessus	Debian dla-4665 : affs-modules-6.1.0-48-4kc-malta-di - security update	3 Jul 202600:00	–	nessus
Tenable Nessus	Debian dla-4671 : linux-config-6.1 - security update	6 Jul 202600:00	–	nessus
Tenable Nessus	Debian dsa-6238 : ata-modules-6.12.74+deb13+1-armmp-di - security update	30 Apr 202600:00	–	nessus
Tenable Nessus	EulerOS 2.0 SP12 : kernel (EulerOS-SA-2026-2535)	10 Jul 202600:00	–	nessus
Tenable Nessus	EulerOS 2.0 SP12 : kernel (EulerOS-SA-2026-2595)	10 Jul 202600:00	–	nessus

Source	Link
nvd	www.nvd.nist.gov/vuln/detail/CVE-2026-31590
git	www.git.kernel.org/stable/c/1cba4dcd795daf6d257122779fb6a349edf03914
git	www.git.kernel.org/stable/c/28cc13ca20431b127d42d84ba10898d03e2c8267
git	www.git.kernel.org/stable/c/8acffeef5ef720c35e513e322ab08e32683f32f2
git	www.git.kernel.org/stable/c/ab423e5892826202a660b5ac85d1125b0e8301a5
git	www.git.kernel.org/stable/c/b670833749ffd8681361db2bb047c6f2e3075f3a
git	www.git.kernel.org/stable/c/c29ff288a2d97a6f4640a498a367cf0eb91312eb

14 Jun 2026 00:00Current

5.8Medium risk

Vulners AI Score5.8

CVSS 3.15.5

EPSS0.00166

Linux kernel KVM SEV sev_pin_memory KVM_MEMORY_ENCRYPT_REG_REGION WARN