Advisoriesby IbisCiscoCVE-2026-20279
Cisco IOS XR Software: improper access control
No fix yet
As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco IOS XR Software engineering team has conducted a comprehensive internal security review. This review resulted in a software hardening releases that address multiple internally discovered vulnerabilities.
The vulnerabilities tracked by CVE-2026-20279 are related to improper access control issues that are grouped under the Common Weakness Enumeration (CWE) CWE-284.
Affected versions
| Package | Affected | Fixed in |
|---|---|---|
| Cisco IOS XR Software Product | <= 6.5.29 | No fix yet |
| <= 7.0.1 | No fix yet | |
| <= 6.5.26 | No fix yet | |
| <= 6.5.25 | No fix yet |
Details and references
- CVSS 3.1
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Severity from
- the vendor (its own CVE record or advisory)
- Weakness
- CWE-284