high8.6
CVE-2026-20276
As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco IOS XR Software engineering team has conducted a comprehensive inter…
Impact
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 products
| Vendor | Product | Affected versions |
|---|---|---|
| Cisco | Ios Xr | Versions 6.5.25, 6.5.26, 6.5.28, 6.5.29, 6.5.31, 6.5.32 |