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VulnerabilityCVE-2026-76498Published 2026-10-07

CVE-2026-76498 — Cisco Application Policy Infrastructure Controller (APIC)

critical

As of 2026-10-07, CVE-2026-76498 is a CRITICAL-severity vulnerability in Cisco Application Policy Infrastructure Controller (APIC), CVSS v3.1 9.8, EPSS 0.3% (20.8th percentile). Threadlinqs Intelligence links 1 tracked threat campaign to CVE-2026-76498, most recently “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)”.

CVSS v3.1
9.8/10Critical
EPSS
0.3%Higher than 20.8% of scored CVEs
CISA KEV
NoNot in the KEV catalog
Tracked threats
1Campaigns referencing it
Priority
5.7/10Threadlinqs triage score
Published
CVSS v3.1 9.8 (CRITICAL) · EPSS 0.3% (higher than 20.8% of all scored CVEs) · Priority 5.7/10 · Published 2026-10-07

Last updated:

What is CVE-2026-76498?

As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Application Policy Infrastructure Controller (APIC) 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-2026-76498 are related to improper access control issues that are grouped under the Common Weakness Enumeration (CWE) Pillar CWE-284.

The record classifies CVE-2026-76498 under weakness class CWE-284. Its CVSS v3 base vector states that the flaw is reachable remotely over the network, needs no prior authentication, 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
9.8 — CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS (FIRST)
0.3% probability of exploitation in the next 30 days, higher than 20.8% of all scored CVEs
CISA KEV
Not listed in the CISA Known Exploited Vulnerabilities catalog
Threadlinqs priority
5.7/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
Published
2026-10-07

Is CVE-2026-76498 being exploited?

It currently carries a trending score of 39 in the Threadlinqs vulnerability feed.

Affected products and versions

  • Cisco: Application Policy Infrastructure Controller (APIC)

How to fix CVE-2026-76498

No vendor patch reference has been recorded for CVE-2026-76498 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-2026-76498

1 tracked threat in the Threadlinqs corpus references CVE-2026-76498, either in the campaign’s CVE list or as an indicator on the campaign record.

Sources

Enriched from CVE.org, FIRST EPSS, GitHub Security Advisories. Last verified by Threadlinqs on .

Other references