---
id: "CVE-2026-76526"
kind: "vulnerability"
aliases: ["CVE-2026-76526"]
title: "Cisco: internal review hardening release fixes unspecified input-neutralization flaws"
severity: "unknown"
cvss: null
epss: 0.0017
exploited: false
status: "open"
category: "infrastructure"
products: []
ecosystems: []
tags: ["cisco", "infrastructure"]
not_affected_if: []
published_at: "2026-10-21T23:17:29+00:00"
first_seen_at: "2026-10-23T21:57:29+00:00"
updated_at: "2026-10-25T05:00:39+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-76526", "first_seen_at": "2026-10-23T21:57:29+00:00"}, {"source": "epss", "url": "https://api.first.org/data/v1/epss?cve=CVE-2026-76526", "first_seen_at": "2026-10-24T07:15:52+00:00"}]
---

# Cisco: internal review hardening release fixes unspecified input-neutralization flaws

Cisco published a software hardening release after an internal security review, grouping several internally found flaws under CWE-707 (improper neutralization). The sources do not name the affected Cisco product or what an attacker could do with these flaws.

_Summary, check and fix written by a model from the sources; labelled as such._

## Timeline

- 2026-10-23T21:57:29+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-76526
- 2026-10-24T07:15:52+00:00 epss https://api.first.org/data/v1/epss?cve=CVE-2026-76526

## From the sources

As part of Cisco's ongoing commitment to proactive security and product quality, Cisco has conducted a comprehensive internal security review. This review resulted in a software hardening release that addresses multiple internally discovered vulnerabilities. The vulnerabilities tracked by CVE-2026-76526 are related to improper neutralization and are grouped under the Common Weakness Enumeration (CWE) CWE-707.

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_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_