CVE-2026-20275
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-2026-20275 are related to incorrect calculation issues that are grouped under the Common Weakness Enumeration (CWE) CWE-682.
Scoring
- Severity
- HIGH
- CVSS base score
- 8.8
- CVSS vector
- CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS probability
- 0.18%
- CWE
- CWE-682
- Published
- 2026-09-02
- Last modified
- 2026-09-09
Affected products
- Cisco Cisco IOS XR Software
- Cisco Cisco IOS XR Software
- Cisco Cisco IOS XR Software
- Cisco Cisco IOS XR Software
- Cisco Cisco IOS XR Software
- Cisco Cisco IOS XR Software
- Cisco Cisco IOS XR Software
- Cisco Cisco IOS XR Software
Weakness type
Related vulnerabilities
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- CVE-2026-53671 — PREVAIL: Context-write no-op in do_mem_store allows unsafe eBPF programs to pass verification
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