ZDI-26-472: (Pwn2Own) Sony XAV-9500ES RTSP SETUP Buffer Overflow Remote Code Execution Vulnerability
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.
AI Analysis
Technical Summary
CVE-2026-18279 is a remote code execution vulnerability in Sony XAV-9500ES devices caused by a buffer overflow in the processing of RTSP SETUP packets. The vulnerability allows an attacker on the same network to execute arbitrary code without requiring authentication due to improper length validation of user input. The Zero Day Initiative assigned a CVSS score of 8.8 (high severity). Sony has released a software update to fix this vulnerability.
Potential Impact
Successful exploitation enables an attacker to execute arbitrary code on affected Sony XAV-9500ES devices with no authentication required, potentially leading to full compromise of the device. The vulnerability affects confidentiality, integrity, and availability as indicated by the CVSS vector (C:H/I:H/A:H).
Mitigation Recommendations
Sony has issued an official software update to correct this vulnerability. Users of Sony XAV-9500ES devices should apply the update available at Sony's support site to remediate this issue.
ZDI-26-472: (Pwn2Own) Sony XAV-9500ES RTSP SETUP Buffer Overflow Remote Code Execution Vulnerability
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.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-18279 is a remote code execution vulnerability in Sony XAV-9500ES devices caused by a buffer overflow in the processing of RTSP SETUP packets. The vulnerability allows an attacker on the same network to execute arbitrary code without requiring authentication due to improper length validation of user input. The Zero Day Initiative assigned a CVSS score of 8.8 (high severity). Sony has released a software update to fix this vulnerability.
Potential Impact
Successful exploitation enables an attacker to execute arbitrary code on affected Sony XAV-9500ES devices with no authentication required, potentially leading to full compromise of the device. The vulnerability affects confidentiality, integrity, and availability as indicated by the CVSS vector (C:H/I:H/A:H).
Mitigation Recommendations
Sony has issued an official software update to correct this vulnerability. Users of Sony XAV-9500ES devices should apply the update available at Sony's support site to remediate this issue.
Technical Details
- Article Source
- {"url":"http://www.zerodayinitiative.com/advisories/ZDI-26-472/","fetched":true,"fetchedAt":"2026-07-30T15:56:20.804Z","wordCount":196}
- Classification
- {"confidence":0.95,"severitySource":"cvss-text","classifier":"rss-v2"}
Threat ID: 6a6b74c59c2644c7f84cc2cd
Added to database: 07/30/2026, 15:59:01 UTC
Last enriched: 08/15/2026, 05:16:53 UTC
Last updated: 09/14/2026, 10:01:29 UTC
Views: 43
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