CVE-2026-64310

🗓️ 25 Jul 2026 08:49:42Reported by LinuxType

cve🔗 web.nvd.nist.gov👁 42 Views🌐 WEB

Linux kernel avoids SNP init for SEV ioctls, preserving HSAVE_PA and surfacing real errors.

Reporter	Title	Published	Views	Family All 19
Cvelist	CVE-2026-64310 crypto: ccp - Do not initialize SNP for SEV ioctls	25 Jul 202608:49	–	cvelist
Debian	[SECURITY] [DLA 4724-1] linux-6.12 new package	7 Aug 202609:29	–	debian
Debian CVE	CVE-2026-64310	25 Jul 202608:49	–	debiancve
Tenable Nessus	Debian dla-4724 : ata-modules-6.12.100+deb12-armmp-di - security update	8 Aug 202600:00	–	nessus
Tenable Nessus	Photon OS 5.0: Linux PHSA-2026-5.0-0928	24 Jul 202600:00	–	nessus
Tenable Nessus	Photon OS 5.0: Linux PHSA-2026-5.0-92-0928	5 Aug 202600:00	–	nessus
Tenable Nessus	Linux Distros Unpatched Vulnerability : CVE-2026-64310	25 Jul 202600:00	–	nessus
EUVD	EUVD-2026-49022	25 Jul 202608:49	–	euvd
NVD	CVE-2026-64310	25 Jul 202610:17	–	nvd
OPENSUSE Linux	kernel-devel-7.1.7-1.1 on GA media (moderate)	10 Aug 202600:00	–	opensuse

NVD

Vulners

CNA

Node

linux linux_kernelRange6.12.75–6.12.96

linux linux_kernelRange6.16–6.18.39

linux linux_kernelRange6.19–7.1.4

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/crypto/ccp/sev-dev.c"
    ],
    "versions": [
      {
        "version": "1c3506ea8599a3ad1b9aae5cbd573134f8d18db7",
        "lessThan": "5181e88da99c3d1d41e25db3472a62b8d4b42cdd",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "ceac7fb89e8da465aec3ac3c20477f912f5c3a6c",
        "lessThan": "9e983d0a74a6a2348e4ce61647ec8a4dfbe198ac",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "ceac7fb89e8da465aec3ac3c20477f912f5c3a6c",
        "lessThan": "d51207735e7c224cf591fa260c557a451a69a5cf",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "ceac7fb89e8da465aec3ac3c20477f912f5c3a6c",
        "lessThan": "fb1758e74b8061aacfbce7bbb7a7cc650537e167",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "6.12.75",
        "lessThan": "6.12.96",
        "status": "affected",
        "versionType": "semver"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/crypto/ccp/sev-dev.c"
    ],
    "versions": [
      {
        "version": "6.16",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "6.16",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.96",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.39",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.1.4",
        "lessThanOrEqual": "7.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.2",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

Source	Link
git	www.git.kernel.org/stable/c/9e983d0a74a6a2348e4ce61647ec8a4dfbe198ac
git	www.git.kernel.org/stable/c/5181e88da99c3d1d41e25db3472a62b8d4b42cdd
git	www.git.kernel.org/stable/c/fb1758e74b8061aacfbce7bbb7a7cc650537e167
git	www.git.kernel.org/stable/c/d51207735e7c224cf591fa260c557a451a69a5cf

Parameter	Position	Path	Description
SEV_PDH_GEN	path	/dev/sev	Vulnerability in Linux kernel SNP initialization path via SEV ioctls that could allow unintended SNP initialization behavior and MSR_VM_HSAVE_PA handling.
SEV_PEK_GEN	path	/dev/sev	Vulnerability in Linux kernel SNP initialization path via SEV ioctls that could allow unintended SNP initialization behavior and MSR_VM_HSAVE_PA handling.
SEV_PEK_CSR	path	/dev/sev	Vulnerability in Linux kernel SNP initialization path via SEV ioctls that could allow unintended SNP initialization behavior and MSR_VM_HSAVE_PA handling.
SEV_PEK_CERT_IMPORT	path	/dev/sev	Vulnerability in Linux kernel SNP initialization path via SEV ioctls that could allow unintended SNP initialization behavior and MSR_VM_HSAVE_PA handling.
SEV_PDH_CERT_EXPORT	path	/dev/sev	Vulnerability in Linux kernel SNP initialization path via SEV ioctls that could allow unintended SNP initialization behavior and MSR_VM_HSAVE_PA handling.

04 Sep 2026 13:02Current

5.9Medium risk

Vulners AI Score5.9

CVSS 3.15.5

EPSS0.00221