A flaw was found in QEMU
A flaw was found in QEMU. This vulnerability allows a local attacker within a guest virtual machine to write data beyond its allocated memory. This occurs when cpu_physical_memory_map() returns a shorter length than expected, leading to an out-of-bounds write. Successful exploitation could result in unauthorized access to guest memory or corruption of heap-allocated objects, potentially causing information disclosure, data integrity issues, or a denial of service.
CVSS Score
7.8
HIGH
Published
16 Jul 2026 01:16
Modified
16 Jul 2026 13:51
Vendor
QEMU. This Vulnerability
Source
CIRCL
CVSS v3 Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Local
Complexity
Low
Privileges
Low
Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Weaknesses (CWE)
CWE-787
Affected Systems
QEMU. This Vulnerability
External Links
KEV Status
Not in CISA KEV catalog