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CVE-2026-76500— Cisco Application Policy Infrastructure Controller Hardening Release: October 2026 - Improper Control of a Resource Through its Lifetime Vulnerabilities

Quick assessment

Affected
Cisco Cisco Application Policy Infrastructure Controller (APIC)
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

作为思科持续致力于主动安全性和产品质量的一部分，思科应用策略基础设施控制器（APIC）工程团队进行了一次全面的内部安全审查。此次审查产生了多项软件加固版本，旨在修复多个内部发现的漏洞。 CVE-2026-76500 所跟踪的漏洞与资源在其生命周期内控制不当的问题有关，这些问题被归类到通用弱点枚举（CWE）支柱 CWE-664 之下。

CVSS 9.8 · Critical

Possible ATT&CK Techniques 1 AI

T1562
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I. Basic Information for CVE-2026-76500

Vulnerability Information
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Vulnerability Title
Cisco Application Policy Infrastructure Controller Hardening Release: October 2026 - Improper Control of a Resource Through its Lifetime Vulnerabilities
Source: CVE Program / CVE List V5
Vulnerability Description
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-2026-76500 are related to issues with improper control of a resource through its lifetime that are grouped under the Common Weakness Enumeration (CWE) Pillar CWE-664.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
在生命周期中对资源的控制不恰当
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Cisco Cisco Application Policy Infrastructure Controller (APIC) 5.2(1g) -

II. Public POCs for CVE-2026-76500

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III. Intelligence Information for CVE-2026-76500

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Other References for CVE-2026-76500 (1)

Same Patch Batch · Cisco · 2026-10-07 · 36 CVEs total

CVE-2026-76482 10.0 CRITICAL Cisco License On-Prem Security Hardening Release
CVE-2026-76465 9.8 CRITICAL Cisco Nexus 3000 and 9000 Series Switches MPLS OAM Remote Code Execution Vulnerability
CVE-2026-76455 9.8 CRITICAL Cisco NX-OS Software Security Hardening Release: October 2026 - Improper Access Control Vu
CVE-2026-76471 9.8 CRITICAL Cisco NX-OS Software NX-API Remote Code Execution Vulnerability
CVE-2026-76480 9.8 CRITICAL Cisco License On-Prem Security Hardening Release
CVE-2026-76501 9.8 CRITICAL Cisco Nexus 9000 Series Switches SRv6 OAM (NGOAM) Remote Code Execution Vulnerability
CVE-2026-76498 9.8 CRITICAL Cisco Application Policy Infrastructure Controller Hardening Release: October 2026 - Impro
CVE-2026-76499 9.8 CRITICAL Cisco Application Policy Infrastructure Controller Hardening Release: October 2026 - Impro
CVE-2026-76486 9.8 CRITICAL Cisco Nexus 3000 and 9000 Series Switches VXLAN OAM (NGOAM) Remote Code Execution Vulnerab
CVE-2026-76485 9.8 CRITICAL Cisco Nexus 3000 and 9000 Series Switches VXLAN OAM (NGOAM) Remote Code Execution Vulnerab
CVE-2026-76464 9.6 CRITICAL Cisco Meraki Hardening Release October 2026 - Buffer Management Vulnerabilities
CVE-2026-76454 9.1 CRITICAL Cisco Smart Software Manager On-Prem Unauthenticated API Vulnerability
CVE-2026-76483 9.1 CRITICAL Cisco License On-Prem Security Hardening Release
CVE-2026-20328 9.1 CRITICAL Cisco Smart Software Manager On-Prem Arbitrary Account Password Reset Vulnerability
CVE-2026-76484 8.8 HIGH Cisco License On-Prem Security Hardening Release
CVE-2026-76453 8.8 HIGH Cisco NX-OS Software Security Hardening Release: October 2026 - Improper Neutralization Vu
CVE-2026-76463 8.8 HIGH Cisco Meraki Security Hardening Release: October 2026 - Improper Access Control Vulnerabil
CVE-2026-76459 8.8 HIGH Cisco NX-OS Software Security Hardening Release: October 2026 - Out-of-bounds Write Vulner
CVE-2026-76470 8.8 HIGH Cisco Meraki Hardening Release - Incorrect Calculation Vulnerabilities
CVE-2026-76472 8.8 HIGH Cisco Meraki Security Hardening Release October 2026 - Improper Neutralization of Special

Showing top 20 of 36 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Cisco Application Policy Infrastructure Controller (APIC)
Same vendor: Cisco
Same weakness: CWE-664

V. Comments for CVE-2026-76500

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