Quick answers
- Is CVE-2026-62914 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-62914 being exploited in the wild.
- How severe is CVE-2026-62914?
- High severity, with a CVSS score of 7.3, published 11 August 2026.
- Which products and versions are affected?
- Microsoft Exchange Server.
- Is there a fix for CVE-2026-62914?
- 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-2026-62914 attacked?
- It is attacked over the network, in a hosted service.
- Am I affected by CVE-2026-62914?
- Check whether you run Microsoft Exchange Server. 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
This vulnerability is an improper input neutralization (CWE-79: Cross-site Scripting) in Microsoft Exchange Server's web page generation. An authorized attacker can inject unsanitized input into the application, allowing execution of arbitrary JavaScript in the context of other users' browsers. The attack requires network access to the Exchange Server web interface and valid authentication credentials. Successful exploitation enables spoofing attacks, session hijacking, or theft of sensitive data. Patches are expected to be available from Microsoft's Security Response Center.
Affected products
- Microsoft Exchange Server
Timeline
- 2026-08-11: disclosed