Description (CNA)
As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco IOS XE Software engineering team has conducted a comprehensive internal security review. This review resulted in software hardening releases that address multiple internally discovered vulnerabilities. The vulnerabilities tracked by CVE-2026-20269 are related to issues with improper control of a resource through its lifetime that are grouped under the Common Weakness Enumeration (CWE) Pillar CWE-664.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Cisco / Cisco IOS XE Software | affected 17.2.1a; affected 16.12.1y; affected 16.12.3s; affected 16.7.1b; affected 16.6.2; affected 16.6.5; affected 16.12.1w; affected 16.9.1d; affected 17.3.1; affected 16.9.4c; affected 16.7.1; affected 17.2.1; affected 16.6.8; affected 16.9.1b; affected 16.9.2s; affected 16.12.4; affected 16.12.3a; affected 17.1.1s; affected 16.11.1a; affected 16.7.2; affected 16.11.1b; affected 16.9.1s; affected 16.9.3h; affected 16.9.1c; affected 16.6.5a; affected 16.6.3; affected 16.10.1f; affected 17.2.1v; affected 16.8.1e; affected 16.9.3a; affected 16.12.1a; affected 16.12.1x; affected 16.6.4s; affected 16.10.1c; affected 16.12.3; affected 16.11.2; affected 16.6.5b; affected 16.12.2s; affected 16.10.1b; affected 16.7.3; affected 16.6.7; affected 16.9.6; affected 16.9.2; affected 16.10.1; affected 16.12.1t; affected 16.9.1; affected 16.8.1a; affected 16.9.3s; affected 16.6.7a; affected 16.12.2; affected 16.11.1; affected 16.9.3; affected 16.11.1s; affected 16.12.1; affected 17.1.1; affected 17.1.2; affected 16.10.1d; affected 17.1.1t; affected 16.9.4; affected 16.8.3; affected 16.12.2t; affected 16.9.5; affected 16.8.1s; affected 16.10.1e; affected 16.8.2; affected 16.6.4; affected 16.8.1b; affected 16.10.1a; affected 16.12.1z; affected 16.8.1c; affected 16.9.1a; affected 16.6.4a; affected 16.10.1g; affected 16.8.1; affected 16.6.6; affected 16.9.2a; affected 16.8.1d; affected 16.10.3; affected 16.7.1a; affected 16.11.1c; affected 16.10.1s; affected 17.2.1r; affected 17.1.1a; affected 16.10.2; affected 16.12.2a; affected 16.12.1c; affected 16.12.1s; affected 16.7.4; affected 17.2.2; affected 16.9.8; affected 16.9.7; affected 17.1.3; affected 17.3.1a; affected 17.3.2a; affected 16.12.5; affected 17.3.1w; affected 17.3.2; affected 17.4.1; affected 16.12.4a; affected 17.4.1a; affected 17.3.1x; affected 17.3.3; affected 16.6.9; affected 17.2.3; affected 17.5.1; affected 16.12.1z1; affected 16.12.5a; affected 17.4.1b; affected 17.3.1z; affected 16.12.5b; affected 17.4.2; affected 17.3.3a; affected 17.3.5; affected 17.3.4; affected 17.5.1a; affected 16.12.6; affected 17.6.1; affected 16.12.1z2; affected 16.6.10; affected 17.3.4a; affected 17.6.1a; affected 17.7.1; affected 17.6.1x; affected 17.6.2; affected 16.12.6a; affected 17.3.4c; affected 17.4.2a; affected 17.3.4b; affected 17.7.1a; affected 16.12.7; affected 17.8.1a; affected 17.6.3a; affected 17.6.3; affected 17.7.2; affected 17.7.1b; affected 17.9.1w; affected 17.3.5a; affected 17.6.1z; affected 16.12.8; affected 17.8.1; affected 17.9.1; affected 17.6.4; affected 17.3.5b; affected 17.9.1a; affected 17.3.6; affected 17.10.1; affected 16.9.8a; affected 17.6.1z1; affected 17.10.1a; affected 17.9.2; affected 17.6.5; affected 17.9.1x; affected 17.9.1y; affected 16.9.8b; affected 17.3.7; affected 17.9.2a; affected 17.9.3; affected 16.12.9; affected 17.11.1; affected 17.10.1b; affected 17.6.6; affected 17.9.1x1; affected 17.11.1a; affected 17.9.3a; affected 17.12.1; affected 17.3.8; affected 17.9.4; affected 16.12.10; affected 17.12.1w; affected 17.9.1y1; affected 17.12.1a; affected 17.9.5; affected 17.13.1; affected 17.12.1x; affected 17.12.2; affected 17.14.1; affected 17.9.4a; affected 17.3.8a; affected 17.6.6a; affected 17.6.5a; affected 17.6.7; affected 16.12.10a; affected 17.15.1; affected 17.13.1a; affected 17.12.2a; affected 16.12.11; affected 17.12.3; affected 17.12.1y; affected 17.12.1z; affected 17.9.5a; affected 17.14.1a; affected 17.9.5b; affected 17.6.8; affected 16.12.12; affected 17.12.4; affected 17.9.6; affected 17.17.1; affected 17.16.1; affected 17.15.1w; affected 17.12.3a; affected 17.9.5c; affected 17.15.1a; affected 17.12.1z1; affected 17.15.2; affected 17.15.1b; affected 17.9.5d; affected 17.15.1x; affected 17.9.6a; affected 17.12.1z2; affected 17.6.8a; affected 17.16.1a; affected 16.12.13; affected 17.15.3; affected 17.9.7; affected 17.12.5; affected 17.15.1y; affected 17.9.5e; affected 17.12.4a; affected 17.15.2a; affected 17.15.2c; affected 17.15.2b; affected 17.12.1z3; affected 17.9.5f; affected 17.12.4b; affected 17.12.5a; affected 17.18.1; affected 17.12.6; affected 17.12.1z4; affected 17.9.8; affected 17.9.7a; affected 17.15.3a; affected 17.15.4; affected 17.12.5b; affected 17.15.3b; affected 16.12.14; affected 17.18.1z; affected 17.9.7b; affected 17.12.5c; affected 26.1.1; affected 17.18.1a; affected 17.15.4a; affected 17.18.2; affected 17.18.1w; affected 17.15.4b; affected 17.12.6a; affected 17.12.7; affected 17.15.4c; affected 17.9.9; affected 17.12.5d; affected 16.12.15; affected 17.15.4s1; affected 17.15.5; affected 17.12.1z5; affected 17.18.1x; affected 17.12.1z6; affected 17.15.4d; affected 17.12.6b; affected 17.4.1c; affected 17.15.5a; affected 17.18.1y; affected 17.12.7a; affected 17.18.3; affected 17.12.7b; affected 17.18.3a; affected 26.1.1a; affected 17.15.7; affected 16.12.16; affected 17.18.5x; affected 26.1.3; affected 17.12.9; affected 17.18.5 |
CWE
CWE-664
References
ADP enrichment
No English description supplied.
No references supplied.
The CVE Program recognizes that this CVE Record provides vulnerability information that a Supplier CNA believes is very important to consumers. The CVE Program has flagged this CVE Record as it assigns a single CVE ID to a collection of individual vulnerabilities which does not align with CVE's "one vulnerability, one ID" principle, and therefore provides incomplete information. For further clarification, please see the CVE Program's blog, "Preserving Vulnerability-Level Identification" linked below. Details within the CNA container below are viewable by clicking on the CNA name.