Buffer overflow in Qemu

CVE-2024-26327

An issue was discovered in QEMU 7.1.0 through 8.2.1. register_vfs in hw/pci/pcie_sriov.c mishandles the situation where a guest writes NumVFs greater than TotalVFs, leading to a buffer overflow in VF implementations.

Vulnerability class: Buffer Overflow

EPSS: 0.005 (41.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

  • Qemu
  • N/a — versions n/a

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2024-26327?
CVE-2024-26327 is a medium-severity vulnerability in Qemu, classified under Out-of-bounds Write. CVSS score: 5.3/10. Published 2024-02-19.
How severe is CVE-2024-26327?
Medium severity. CVSS v3 base score is 5.3 out of 10.
Is CVE-2024-26327 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.