Advisoriesby IbisCiscoCVE-2026-20276
As part of Cisco's ongoing commitment to proactive security and product quality
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-2026-20276 are related to insufficient control flow management issues that are grouped under the Common Weakness Enumeration (CWE) CWE-691.
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:C/C:N/I:N/A:H
- Severity from
- the vendor (its own CVE record or advisory)
- Weakness
- CWE-691