ZDI-26-472: (Pwn2Own) Sony XAV-9500ES RTSP SETUP Buffer Overflow Remote Code Execution Vulnerability
This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Sony XAV-9500ES devices. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of SETUP RTSP packets. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length buffer. An attacker can leverage this vulnerability to execute code in the context of the device.
Other sources
This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Sony XAV-9500ES devices. Authentication is not required to exploit this vulnerability. The ZDI has assigned a CVSS rating of 8.8. The following CVEs are assigned: CVE-2026-18279.
— 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-26-472 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Patch CVE-2026-18279
Event History
Frequently Asked Questions
What is the severity of ZDI-26-472?
The severity of ZDI-26-472 is rated at 90, indicating a high risk level.
How do I fix ZDI-26-472?
To fix ZDI-26-472, ensure that your Sony XAV-9500ES device has the latest firmware updates applied.
What type of vulnerability is ZDI-26-472?
ZDI-26-472 is a buffer overflow vulnerability that can lead to remote code execution.
Do I need authentication to exploit ZDI-26-472?
No, authentication is not required to exploit ZDI-26-472.
What devices are affected by ZDI-26-472?
ZDI-26-472 affects the Sony XAV-9500ES device.