Quick answers
- Is CVE-2026-76428 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-76428 being exploited in the wild.
- How severe is CVE-2026-76428?
- Medium severity, with a CVSS score of 4.9, published 16 September 2026.
- Which products and versions are affected?
- Cisco Identity Services Engine Multiple versions affected; Cisco ISE Passive Identity Connector Multiple versions affected.
- Is there a fix for CVE-2026-76428?
- 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-2026-76428 attacked?
- It is attacked over the network, in a network appliance.
- Am I affected by CVE-2026-76428?
- Check whether you run Cisco Identity Services Engine or Cisco ISE Passive Identity Connector 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
The vulnerability exists in Cisco ISE and ISE-PIC REST APIs due to insufficient parameterization of SQL queries. Certain input parameters are concatenated directly into SQL clauses without proper escaping or prepared statements. An authenticated, remote attacker with valid administrative credentials can exploit this by sending a crafted HTTP request containing SQL injection payloads in affected parameters. A successful exploit allows reading arbitrary data from the session database. Patches are available; no workarounds exist.
Affected products
- Cisco Identity Services Engine Multiple versions affected
- Cisco ISE Passive Identity Connector Multiple versions affected
Timeline
- 2026-09-16: disclosed: Cisco Security Advisory published