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 exp…
| CVE ID | CVE-2026-3842 |
| Vendor | Unknown Vendor |
| Affected Product | Unknown Product |
| Vulnerability Type | Vulnerability |
| CVSS Score | 7.8 (HIGH) |
| EPSS Score | 0.1% probability of exploitation in the next 30 days |
| Actively Exploited | ✅ Yes |
| Patch Status | Pending Vendor Disclosure |
| Reported By | CYBERDUDEBIVASH SENTINEL APEX Intelligence (via sentinel_apex) |
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.
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