ZDI-CAN-29042: 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 - Compensating control
Mitigate the issue by restricting network access to the Sony XAV-9500ES RTSP service/port so network-adjacent attackers cannot reach it (authentication is not required to exploit).
Event History
Frequently Asked Questions
What is the severity of ZDI-CAN-29042?
ZDI-CAN-29042 has a CVSS rating of 8.8, indicating a high severity level.
How do I fix ZDI-CAN-29042?
To fix ZDI-CAN-29042, apply updates or patches provided by Sony for the XAV-9500ES device.
What type of attack does ZDI-CAN-29042 facilitate?
ZDI-CAN-29042 enables network-adjacent attackers to execute arbitrary code remotely.
Is authentication required to exploit ZDI-CAN-29042?
No, authentication is not required to exploit ZDI-CAN-29042, making it particularly dangerous.
Which devices are affected by ZDI-CAN-29042?
ZDI-CAN-29042 affects installations of the Sony XAV-9500ES devices.