Quick answers
- Is CVE-2026-96199 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-96199 being exploited in the wild.
- How severe is CVE-2026-96199?
- High severity, with a CVSS score of 8.8, published 29 October 2026.
- Which products and versions are affected?
- Microsoft Edge <UNKNOWN>.
- Is there a fix for CVE-2026-96199?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-96199 attacked?
- It is attacked over the network, in a web application.
- Am I affected by CVE-2026-96199?
- Check whether you run Microsoft Edge at an affected version. 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 heap-based buffer overflow in the Chromium-based rendering engine allows an attacker to corrupt heap memory and achieve arbitrary code execution. The vulnerability is reachable over the network through crafted web content or messages, requiring no prior authentication. An attacker can exploit this to execute arbitrary code in the context of the Edge process.
Affected products
- Microsoft Edge <UNKNOWN>
Timeline
- 2026-10-29: disclosed