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Reference page — cumulative record through Wednesday, August 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2024-50115HIGH
Linux Linux — KVM: nSVM: Ignore nCR3[4:0] when loading PDPTEs from memory
  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   L   L   L   N  U  H  N  H    7.1   .0024   16.1     —
AFFECTED
  Product  Versions                                    Fixed
  Linux    e4e517b4be019787ada4cbbce2f04570c21b0cbd –  —
  Linux    3.2 –                                       5.10.229
TIMELINE
  Oct 21  Reserved by Linux
  Nov 5   Published (CNA: Linux)
  Aug 4   RESCORED — CVE-2024-50115 (Linux). CVSS 8.4 → 7.1 (NVD).
CWE-125 · CNA: Linux · CVSS v3.1 · 8 references · NVD status: Modified

Description

In the Linux kernel, the following vulnerability has been resolved: KVM: nSVM: Ignore nCR3[4:0] when loading PDPTEs from memory Ignore nCR3[4:0] when loading PDPTEs from memory for nested SVM, as bits 4:0 of CR3 are ignored when PAE paging is used, and thus VMRUN doesn't enforce 32-byte alignment of nCR3. In the absolute worst case scenario, failure to ignore bits 4:0 can result in an out-of-bounds read, e.g. if the target page is at the end of a memslot, and the VMM isn't using guard pages. Per the APM: The CR3 register points to the base address of the page-directory-pointer table. The page-directory-pointer table is aligned on a 32-byte boundary, with the low 5 address bits 4:0 assumed to be 0. And the SDM's much more explicit: 4:0 Ignored Note, KVM gets this right when loading PDPTRs, it's only the nSVM flow that is broken.

Lifecycle

Complete event history — 3 events, chronological
DateEventDetail
October 21, 2024ReservedReserved by Linux
November 5, 2024PublishedPublished (CNA: Linux)
August 4, 2026RESCOREDRESCORED — CVE-2024-50115 (Linux). CVSS 8.4 → 7.1 (NVD).

Affected

Affected products and packages — 2 rows
VendorProduct / PackageEcosystemVersion introducedFixed
LinuxLinuxe4e517b4be019787ada4cbbce2f04570c21b0cbd
LinuxLinux3.25.10.229

Weaknesses

CWE-125

References (8)

Related

Authoritative record: CVE-2024-50115 at cve.org

Vendors: linux

Weaknesses: CWE-125

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2024-50115 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, August 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.