ZDI-26-477: (Pwn2Own) Sony XAV-9500ES Crash Dump Handler Command Injection Local Privilege Escalation Vulnerability
This vulnerability allows local attackers to escalate privileges on affected installations of Sony XAV-9500ES devices. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the handling of process crash dumps. The issue results from the lack of proper validation of a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of root.
Other sources
This vulnerability allows local attackers to escalate privileges on affected installations of Sony XAV-9500ES devices. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The ZDI has assigned a CVSS rating of 7.8. The following CVEs are assigned: CVE-2026-18284.
— ZDI
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Patch ZDI-26-477 - Upgrade
Upgrade
Sony XAV-9500ESto a version that resolves this vulnerability.Fixed in CVE-2026-18284
Event History
Frequently Asked Questions
What is the severity of ZDI-26-477?
The vulnerability ZDI-26-477 has a CVSS rating of 7.8, indicating it is of high severity.
How do I fix ZDI-26-477?
To mitigate ZDI-26-477, ensure that your Sony XAV-9500ES devices are updated to the latest firmware that addresses this vulnerability.
What type of attack does ZDI-26-477 facilitate?
ZDI-26-477 allows local privilege escalation on affected installations of Sony XAV-9500ES devices.
Who is affected by ZDI-26-477?
Users of Sony XAV-9500ES devices who are exposed to local attackers can be affected by ZDI-26-477.
What is required to exploit ZDI-26-477?
An attacker must first gain the ability to execute low-privileged code on the target Sony XAV-9500ES device to exploit ZDI-26-477.