Quick answers
- Is CVE-2026-18279 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-18279 being exploited in the wild.
- How severe is CVE-2026-18279?
- High severity, with a CVSS score of 8.8, published 20 August 2026.
- Which products and versions are affected?
- Sony XAV-9500ES.
- Is there a fix for CVE-2026-18279?
- A patch was published on 2026-07-29: Sony issued an update Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-18279 attacked?
- It is attacked from the adjacent network.
- Am I affected by CVE-2026-18279?
- Check whether you run Sony XAV-9500ES. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
A buffer overflow vulnerability exists in the RTSP SETUP packet handler of the Sony XAV-9500ES. The flaw results from insufficient validation of user-supplied data length before copying it into a fixed-length stack or heap buffer. An attacker on the adjacent network can send a malformed RTSP SETUP packet with an oversized payload to trigger the overflow and achieve arbitrary code execution in the context of the device. No authentication is required. The vendor has issued a software update to address this issue.
Affected products
- Sony XAV-9500ES
Timeline
- 2026-03-19: disclosed: Vulnerability reported to vendor
- 2026-07-29: advisory: Coordinated public release
- 2026-07-29: patched: Sony issued an update