CVE-2026-3842
7.8
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
7.1.0 < 11.0.0 | affected |
Weaknesses
- CWE-787: Out-of-bounds Write
References
- https://access.redhat.com/security/cve/CVE-2026-3842
- https://bugzilla.redhat.com/show_bug.cgi?id=2458150
Feedback
Was this page helpful?
Glad to hear it! Please tell us how we can improve.
Sorry to hear that. Please tell us how we can improve.