CVE-2026-20275
Received Received - Intake

Incorrect Calculation in Cisco IOS XR Software

Publication date: 2026-09-02

Last updated on: 2026-09-02

Assigner: Cisco Systems, Inc.

Description
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.

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Meta Information

Published
2026-09-02
Last Modified
2026-09-02
Generated
2026-09-02
AI Q&A
2026-09-02
EPSS Evaluated
N/A
NVD
CVE-2026-20275
EUVD
EUVD-2026-70205

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
cisco ios_xr_software *

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-682 The product performs a calculation that generates incorrect or unintended results that are later used in security-critical decisions or resource management.

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Executive Summary

CVE-2026-20275 is a vulnerability in Cisco IOS XR Software related to incorrect calculation issues, classified under CWE-682. It was discovered during Cisco's internal security review and affects the software's calculation mechanisms.

Impact Analysis

This vulnerability could allow attackers to execute arbitrary code, gain unauthorized access, or cause denial of service due to incorrect calculations in the software. The CVSS score of 8.8 indicates high severity.

Compliance Impact

The provided CVE data does not specify direct impacts on compliance with standards like GDPR or HIPAA. The vulnerability involves incorrect calculation issues (CWE-682) in Cisco IOS XR Software, which could potentially lead to security breaches affecting confidentiality, integrity, and availability of systems.

Mitigation Strategies

Apply the latest Cisco IOS XR Software security updates provided by Cisco to address the incorrect calculation issues. Monitor Cisco's security advisories for patches and verify the installed version matches the hardened release.

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