Vulnerability · Published Aug 20, 2026 · Assigned by zdi

CVE-2026-18279Sony XAV-9500ES RTSP SETUP Buffer Overflow Remote Code Execution Vulnerability

High 8.8

In plain English

A high-severity buffer overflow in XAV-9500ES from Sony. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.7% (higher than 53% of all known vulnerabilities).

Severity (CVSS 3.0)8.8High

Exploit odds (30 days)0.7%top 47.2% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

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.

Affected products (as reported)

Vendor	Product	Versions
Sony	XAV-9500ES	3.02.00

Weakness: CWE-120 · Vector: CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

ZDI-26-472 x_research-advisory
vendor-provided URL vendor-advisory