Quick answers
- Is CVE-2026-122518 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-122518 being exploited in the wild.
- How severe is CVE-2026-122518?
- Medium severity, with a CVSS score of 6.5, published 10 November 2026.
- Which products and versions are affected?
- Microsoft Edge.
- Is there a fix for CVE-2026-122518?
- 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-2026-122518 attacked?
- It is attacked over the network, in a web application.
- Am I affected by CVE-2026-122518?
- Check whether you run Microsoft Edge. 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
An out-of-bounds read vulnerability in Microsoft Edge (Chromium-based) permits remote information disclosure via network attack vector. The flaw allows an attacker to read memory beyond allocated buffer boundaries, potentially exposing sensitive data. No exploitation in the wild has been reported as of the advisory date.
Affected products
- Microsoft Edge
Timeline
- 2026-11-10: disclosed