CVE-2026-77178

CRITICAL CVSS 3.1: 9.1 EPSS 0.34%
Updated Oct 06, 2026
Oracle
Parameter Value
CVSS 9.1 (CRITICAL)
Affected Versions before 7.2.8
Type CWE-787 (Out-of-bounds Write)
Vendor Oracle
Public PoC No

Oracle VM VirtualBox before 7.2.8 allows guest OS users to cause an out-of-bounds write in the host OS in pcnetReceiveNoSync in DevPCNet.cpp in the PCNet (Am79C970A) network device model.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
None
No data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service

CVSS Vector v3.1

Weakness Type (CWE)

Vulnerable Products

n/a:n/a