Quick answers
- Is CVE-2026-125880 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-125880 being exploited in the wild.
- How severe is CVE-2026-125880?
- Informational severity, published 10 November 2026.
- Which products and versions are affected?
- N-able N-central before 26.4.1.
- Is there a fix for CVE-2026-125880?
- Yes: fixed in N-central 26.4.1. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-125880 attacked?
- It is in a web application.
- Am I affected by CVE-2026-125880?
- Check whether you run N-able N-central 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.
How to fix
- Fixed in: N-central 26.4.1
Technical details
The vulnerability is an improper neutralization of HTTP headers for scripting syntax, allowing reflected or stored cross-site scripting (XSS). The attack vector appears to involve HTTP headers in the MMS3 patch metadata admin context. Successful exploitation requires an attacker to craft a malicious request with crafted headers or to inject data into the system that reaches an administrative interface.
Affected products
- N-able N-central before 26.4.1
Timeline
- 2026-11-10: disclosed