CVE-2026-18279 Sony XAV-9500ES RTSP SETUP Buffer Overflow Remote Code Execution Vulnerability
Network-adjacent attackers can execute arbitrary code on Sony XAV-9500ES devices via a buffer overflow in RTSP SETUP packet handling without authentication.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-18279?
CVE-2026-18279 is a high-severity memory corruption vulnerability in Sony XAV-9500ES, published on 20 Aug 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
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. Was ZDI-CAN-29042.
Weakness: CWE-120
Which versions are affected by CVE-2026-18279?
How do I fix CVE-2026-18279?
No fix has been published for CVE-2026-18279 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-18279 being exploited?
There is no known exploitation of CVE-2026-18279 in the wild and no public exploit code.
Sources
Also known as GHSA-w47w-hvhg-f7v6.