CVE-2026-20276
EUVD-2026-7020302.09.2026, 17:17
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.Enginsight
Affected Products (NVD)
| Vendor | Product | Version |
|---|---|---|
| cisco | ios_xr | 6.5.25 |
| cisco | ios_xr | 6.5.26 |
| cisco | ios_xr | 6.5.28 |
| cisco | ios_xr | 6.5.29 |
| cisco | ios_xr | 6.5.31 |
| cisco | ios_xr | 6.5.32 |
| cisco | ios_xr | 6.5.33 |
| cisco | ios_xr | 6.5.35 |
| cisco | ios_xr | 6.5.90 |
| cisco | ios_xr | 6.5.351 |
| cisco | ios_xr | 6.5.352 |
| cisco | ios_xr | 6.5.353 |
| cisco | ios_xr | 6.7.1 |
| cisco | ios_xr | 6.7.2 |
| cisco | ios_xr | 6.7.3 |
| cisco | ios_xr | 6.7.4 |
| cisco | ios_xr | 6.7.35 |
| cisco | ios_xr | 6.8.1 |
| cisco | ios_xr | 6.8.2 |
| cisco | ios_xr | 6.9.1 |
| cisco | ios_xr | 6.9.2 |
| cisco | ios_xr | 7.0.0 |
| cisco | ios_xr | 7.0.1 |
| cisco | ios_xr | 7.0.2 |
| cisco | ios_xr | 7.0.11 |
| cisco | ios_xr | 7.0.12 |
| cisco | ios_xr | 7.0.14 |
| cisco | ios_xr | 7.0.90 |
| cisco | ios_xr | 7.1.1 |
| cisco | ios_xr | 7.1.2 |
| cisco | ios_xr | 7.1.3 |
| cisco | ios_xr | 7.1.15 |
| cisco | ios_xr | 7.1.25 |
| cisco | ios_xr | 7.2.0 |
| cisco | ios_xr | 7.2.1 |
| cisco | ios_xr | 7.2.2 |
| cisco | ios_xr | 7.2.12 |
| cisco | ios_xr | 7.3.1 |
| cisco | ios_xr | 7.3.2 |
| cisco | ios_xr | 7.3.3 |
| cisco | ios_xr | 7.3.4 |
| cisco | ios_xr | 7.3.5 |
| cisco | ios_xr | 7.3.6 |
| cisco | ios_xr | 7.3.15 |
| cisco | ios_xr | 7.3.16 |
| cisco | ios_xr | 7.3.27 |
| cisco | ios_xr | 7.4.1 |
| cisco | ios_xr | 7.4.2 |
| cisco | ios_xr | 7.4.15 |
| cisco | ios_xr | 7.4.16 |
| cisco | ios_xr | 7.5.1 |
| cisco | ios_xr | 7.5.2 |
| cisco | ios_xr | 7.5.3 |
| cisco | ios_xr | 7.5.4 |
| cisco | ios_xr | 7.5.5 |
| cisco | ios_xr | 7.5.12 |
| cisco | ios_xr | 7.5.52 |
| cisco | ios_xr | 7.6.1 |
| cisco | ios_xr | 7.6.2 |
| cisco | ios_xr | 7.6.3 |
| cisco | ios_xr | 7.6.15 |
| cisco | ios_xr | 7.7.1 |
| cisco | ios_xr | 7.7.2 |
| cisco | ios_xr | 7.7.21 |
| cisco | ios_xr | 7.8.1 |
| cisco | ios_xr | 7.8.2 |
| cisco | ios_xr | 7.8.12 |
| cisco | ios_xr | 7.8.22 |
| cisco | ios_xr | 7.8.23 |
| cisco | ios_xr | 7.9.1 |
| cisco | ios_xr | 7.9.2 |
| cisco | ios_xr | 7.9.21 |
| cisco | ios_xr | 7.10.1 |
| cisco | ios_xr | 7.10.2 |
| cisco | ios_xr | 7.11.1 |
| cisco | ios_xr | 7.11.2 |
| cisco | ios_xr | 7.11.21 |
| cisco | ios_xr | 24.1.1 |
| cisco | ios_xr | 24.1.2 |
| cisco | ios_xr | 24.2.1 |
| cisco | ios_xr | 24.2.2 |
| cisco | ios_xr | 24.2.11 |
| cisco | ios_xr | 24.2.20 |
| cisco | ios_xr | 24.2.21 |
| cisco | ios_xr | 24.3.1 |
| cisco | ios_xr | 24.3.2 |
| cisco | ios_xr | 24.3.20 |
| cisco | ios_xr | 24.3.30 |
| cisco | ios_xr | 24.4.1 |
| cisco | ios_xr | 24.4.2 |
| cisco | ios_xr | 24.4.10 |
| cisco | ios_xr | 24.4.15 |
| cisco | ios_xr | 24.4.30 |
| cisco | ios_xr | 25.1.1 |
| cisco | ios_xr | 25.1.2 |
| cisco | ios_xr | 25.1.30 |
| cisco | ios_xr | 25.2.1 |
| cisco | ios_xr | 25.2.2 |
| cisco | ios_xr | 25.2.15 |
| cisco | ios_xr | 25.2.30 |
| cisco | ios_xr | 25.3.1 |
| cisco | ios_xr | 25.3.15 |
| cisco | ios_xr | 25.4.1 |
| cisco | ios_xr | 25.4.2 |
| cisco | ios_xr | 25.4.30 |
| cisco | ios_xr | 25.4.201 |
| cisco | ios_xr | 26.1.1 |
| cisco | ios_xr | 26.1.2 |
| cisco | ios_xr | 26.2.1 |
| cisco | ios_xr | 26.2.100 |
| cisco | ios_xr | 26.2.101 |
𝑥
= Vulnerable software versions
Common Weakness Enumeration