CVE-2024-45819

5.5 mediumEPSS 0.3%

Medium (5.5) in xen xen. EPSS 0.3% chance of exploitation in the next 30 days.

PVH guests have their ACPI tables constructed by the toolstack. The construction involves building the tables in local memory, which are then copied into guest memory. While actually used parts of the local memory are filled in correctly, excess space that is being allocated is left with its prior contents.

Severity

CVSS 3.1

5.5 medium

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

EPSS: 0.3% chance of exploitation in the next 30 days; higher than 22% of CVEs (scores of 2026-10-31)
CWE: CWE-276
Published: 2024-12-19
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

xen:xen

References

https://xenbits.xenproject.org/xsa/advisory-464.html
http://www.openwall.com/lists/oss-security/2024/11/12/1
http://www.openwall.com/lists/oss-security/2024/11/12/10
http://www.openwall.com/lists/oss-security/2024/11/12/7
http://xenbits.xen.org/xsa/advisory-464.html

Check your stack JSON