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CVE-2026-76454— Cisco Smart Software Manager On-Prem Unauthenticated API Vulnerability

Quick assessment

Affected
Cisco Cisco License On-Prem
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.

在思科许可本地部署产品（原思科智能软件管理器本地部署版，SSM On-Prem）的思科智能许可实用程序 API 中存在一个漏洞，该漏洞可能允许未经身份验证的远程攻击者向系统写入任意文件，或对受影响的应用程序导致拒绝服务（DoS）条件。 此漏洞源于管理 API 中输入验证不当以及缺乏身份认证机制。攻击者可通过向受影响的 API 发送精心构造的请求来利用此漏洞。成功利用后，攻击者可能修改系统文件或导致拒绝服务状况。

CVSS 9.1 · Critical
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I. Basic Information for CVE-2026-76454

Vulnerability Information
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Vulnerability Title
Cisco Smart Software Manager On-Prem Unauthenticated API Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability in the Cisco Smart Licensing Utility API of Cisco License On-Prem, formerly Cisco Smart Software Manager On-Prem (SSM On-Prem), could allow an unauthenticated, remote attacker to write arbitrary files to the system or cause a DoS condition on an affected application. This vulnerability is due to improper input validation and a lack of authentication in the management API. An attacker could exploit this vulnerability by sending a crafted request to the affected API. A successful exploit could allow the attacker to modify system files or cause a DoS condition.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
相对路径遍历
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Cisco Cisco License On-Prem 7-202001 -

II. Public POCs for CVE-2026-76454

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III. Intelligence Information for CVE-2026-76454

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Other References for CVE-2026-76454 (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-2026-76486 9.8 CRITICAL Cisco Nexus 3000 and 9000 Series Switches VXLAN OAM (NGOAM) Remote Code Execution Vulnerab
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-2026-76485 9.8 CRITICAL Cisco Nexus 3000 and 9000 Series Switches VXLAN OAM (NGOAM) Remote Code Execution Vulnerab
CVE-2026-76499 9.8 CRITICAL Cisco Application Policy Infrastructure Controller Hardening Release: October 2026 - Impro
CVE-2026-76498 9.8 CRITICAL Cisco Application Policy Infrastructure Controller Hardening Release: October 2026 - Impro
CVE-2026-76501 9.8 CRITICAL Cisco Nexus 9000 Series Switches SRv6 OAM (NGOAM) Remote Code Execution Vulnerability
CVE-2026-76500 9.8 CRITICAL Cisco Application Policy Infrastructure Controller Hardening Release: October 2026 - Impro
CVE-2026-76464 9.6 CRITICAL Cisco Meraki Hardening Release October 2026 - Buffer Management Vulnerabilities
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-2026-76453 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-2026-76484 8.8 HIGH Cisco License On-Prem Security Hardening Release
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 License On-Prem
Same vendor: Cisco
Same weakness: CWE-23

V. Comments for CVE-2026-76454

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