CVE-2026-20270

The record

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-2026-20270 are related to incorrect calculation issues that are grouped under the Common Weakness Enumeration (CWE) Pillar CWE-682.

Affected packages

Related vulnerabilities

• CVE-2026-115786 A mailbox quota-accounting vulnerability in Zimbra Collaboration Suite (ZCS) allows an… CWE-682
• CVE-2026-106438 An incorrect calculation in Decimal128 string parsing in the MongoDB C Driver can accept… CWE-682
• CVE-2026-53670 PREVAIL is a Polynomial-Runtime EBPF Verifier using an Abstract Interpretation Layer. CWE-682
• CVE-2026-53671 PREVAIL is a Polynomial-Runtime EBPF Verifier using an Abstract Interpretation Layer. CWE-682
• CVE-2026-53706 PREVAIL is a Polynomial-Runtime EBPF Verifier using an Abstract Interpretation Layer. CWE-682
• CVE-2026-54754 Klever-Go is the Go implementation of the Klever blockchain protocol. CWE-682
• CVE-2026-76043 Incorrect calculation in V8 in Google Chrome prior to 151.0.7922.169 allowed a remote… CWE-682
• CVE-2026-71479 New API is a large language mode (LLM) gateway and artificial intelligence (AI) asset… CWE-682