CVE-2026-3842

תיאור (מקור, אנגלית)

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.

מדדים

CVSS 3.1

7.8 (HIGH) מקור הציון: CNA CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS — סבירות ניצול

0% (אחוזון 000) נכון ל-8/8/2026

CWE

CWE-787

קישורים

• https://access.redhat.com/security/cve/CVE-2026-3842
• https://bugzilla.redhat.com/show_bug.cgi?id=2458150
• https://access.redhat.com/security/cve/CVE-2026-3842
• https://bugzilla.redhat.com/show_bug.cgi?id=2458150
• https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-3842.json