# CVE-2026-76484 — Cisco License On-Prem

> As of 2026-10-08, CVE-2026-76484 is a HIGH-severity vulnerability in Cisco License On-Prem, CVSS v3.1 8.8, EPSS 0.2% (18.3th percentile). Threadlinqs Intelligence links 2 tracked threat campaigns to CVE-2026-76484, most recently “Cisco Nexus 3000/9000 NX-OS and Cisco License (Smart Software Manager On-Prem) critical flaws enabling switch takeover (CVE-2026-76471, CVE-2026-76480, CVE-2026-76482 and others)”.

**Last updated:** 2026-10-08

## What is CVE-2026-76484?

As part of Cisco's ongoing commitment to proactive security and product quality, the engineering team for Cisco License On-Prem, formerly Cisco Smart Software Manager On-Prem (SSM On-Prem), 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-2026-76484 are related to issues with insufficient protection against code injection that are grouped under the Common Weakness Enumeration (CWE) Pillar CWE-94.

The record classifies CVE-2026-76484 under weakness class [CWE-94](https://intel.threadlinqs.com/cwe/CWE-94). Its CVSS v3 base vector states that the flaw is reachable remotely over the network, needs low-privilege credentials, needs no user interaction, and has high impact on confidentiality, integrity, availability. 1 affected-product entry is recorded, across 1 vendor, listed below. The identifier was first published 3 days ago.

## Severity and exploitation probability

- **CVSS v3.1 base score:** 8.8 — HIGH (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`)
- **EPSS (FIRST):** 0.2% probability of exploitation in the next 30 days, higher than 18.3% of all scored CVEs
- **CISA KEV:** Not listed in the CISA Known Exploited Vulnerabilities catalog
- **Threadlinqs priority:** 5.1/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
- **Published:** 2026-10-07, last modified 2026-10-08

## Is CVE-2026-76484 being exploited?

It currently carries a trending score of 44 in the Threadlinqs vulnerability feed.

## Affected products and versions

- [Cisco](https://intel.threadlinqs.com/vendors/cisco): License On-Prem

## How to fix CVE-2026-76484

No vendor patch reference has been recorded for CVE-2026-76484 in the tracked sources. Follow the references below for a fix, and treat the products listed above as exposed until the vendor states otherwise.

## Threat activity tracking CVE-2026-76484

2 tracked threats in the Threadlinqs corpus reference CVE-2026-76484, either in the campaign’s CVE list or as an indicator on the campaign record.

- [Cisco Nexus 3000/9000 NX-OS and Cisco License (Smart Software Manager On-Prem) critical flaws enabling switch takeover (CVE-2026-76471, CVE-2026-76480, CVE-2026-76482 and others)](https://intel.threadlinqs.com/threat/TL-2026-3082) — CRITICAL · 2026-10-09
- [Cisco October 2026 Security Advisories: Critical Flaws in Meraki, License (SSM) On-Prem, NX-OS, APIC and Finesse (CVE-2026-76464, CVE-2026-20328, CVE-2026-76485 and others)](https://intel.threadlinqs.com/threat/TL-2026-3108) — CRITICAL · 2026-10-09

## Sources

Enriched from CVE.org, NVD, FIRST EPSS, GitHub Security Advisories. Last verified by Threadlinqs on 2026-10-10. This product uses the NVD API but is not endorsed or certified by the NVD.

**Other references**

- [sec.cloudapps.cisco.com](https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-hardening-ssm-Ph77wdhf)

Canonical: https://intel.threadlinqs.com/cve/CVE-2026-76484
Full detection coverage and IOCs for threats exploiting CVE-2026-76484 via the Threadlinqs MCP server (Purple tier): https://intel.threadlinqs.com/mcp