CVE-2026-63794

🗓️ 19 Jul 2026 12:02:03Reported by LinuxType

KVM SVM fix: prevent page overflow in sev_dbg_crypt() ENCRYPT path by bounding length to destination page.

Reporter	Title	Published	Views	Family All 8
ATTACKERKB	CVE-2026-63794	19 Jul 202612:02	–	attackerkb
Cvelist	CVE-2026-63794 KVM: SVM: Fix page overflow in sev_dbg_crypt() for ENCRYPT path	19 Jul 202612:02	–	cvelist
EUVD	EUVD-2026-45460	19 Jul 202612:02	–	euvd
NVD	CVE-2026-63794	19 Jul 202612:16	–	nvd
OSV	CVE-2026-63794 KVM: SVM: Fix page overflow in sev_dbg_crypt() for ENCRYPT path	19 Jul 202612:02	–	osv
OSV	DEBIAN-CVE-2026-63794	19 Jul 202612:16	–	osv
Positive Technologies	PT-2026-61110	19 Jul 202600:00	–	ptsecurity
SUSE CVE	SUSE CVE-2026-63794	19 Jul 202617:35	–	susecve

Vulners

CNA

Node

linux linux_kernelRange4.16–5.10.260

linux linux_kernelRange5.11.0–5.15.211

linux linux_kernelRange5.16.0–6.1.177

linux linux_kernelRange6.2.0–6.6.144

linux linux_kernelRange6.7.0–6.12.95

linux linux_kernelRange6.13.0–6.18.38

linux linux_kernelRange6.19.0–7.1.3

linux linux_kernelRange7.2.0–7.2-rc1

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "arch/x86/kvm/svm/sev.c"
    ],
    "versions": [
      {
        "version": "24f41fb23a39bc2b6f190dcef35a5813a4bf183a",
        "lessThan": "f701ae476cb92a3a3d8844bb39bb63b4512684c8",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "24f41fb23a39bc2b6f190dcef35a5813a4bf183a",
        "lessThan": "64f2449841ffc7d203183aa4c748c9c77951ecc5",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "24f41fb23a39bc2b6f190dcef35a5813a4bf183a",
        "lessThan": "9349b50f4b11f135fe73b56cb2c2c872d8bc71d7",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "24f41fb23a39bc2b6f190dcef35a5813a4bf183a",
        "lessThan": "889c2a9c59897ca912bf39df5bb92555a0a13df4",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "24f41fb23a39bc2b6f190dcef35a5813a4bf183a",
        "lessThan": "e1a0fe288dee07b7da25a71e007c1ecd1080315b",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "24f41fb23a39bc2b6f190dcef35a5813a4bf183a",
        "lessThan": "720949ed666f34ff28ffdfe1471a5861d1e41fdf",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "24f41fb23a39bc2b6f190dcef35a5813a4bf183a",
        "lessThan": "2753a097d1fe24c4351c608048612c74108aa89f",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "24f41fb23a39bc2b6f190dcef35a5813a4bf183a",
        "lessThan": "78ee2d50185a037b3d2452a97f3dad69c3f7f389",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "arch/x86/kvm/svm/sev.c"
    ],
    "versions": [
      {
        "version": "4.16",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "4.16",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.10.260",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.15.211",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.177",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.144",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.95",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.38",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.1.3",
        "lessThanOrEqual": "7.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.2-rc1",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

Source	Link
git	www.git.kernel.org/stable/c/720949ed666f34ff28ffdfe1471a5861d1e41fdf
git	www.git.kernel.org/stable/c/78ee2d50185a037b3d2452a97f3dad69c3f7f389
git	www.git.kernel.org/stable/c/889c2a9c59897ca912bf39df5bb92555a0a13df4
git	www.git.kernel.org/stable/c/64f2449841ffc7d203183aa4c748c9c77951ecc5
git	www.git.kernel.org/stable/c/f701ae476cb92a3a3d8844bb39bb63b4512684c8
git	www.git.kernel.org/stable/c/e1a0fe288dee07b7da25a71e007c1ecd1080315b
git	www.git.kernel.org/stable/c/9349b50f4b11f135fe73b56cb2c2c872d8bc71d7
git	www.git.kernel.org/stable/c/2753a097d1fe24c4351c608048612c74108aa89f

19 Jul 2026 12:16Current

5.6Medium risk

Vulners AI Score5.6