CVE-2026-76730— Improper PAPI Packet handling leads to unauthorized access in HPE Networking Instant ON APs
Quick assessment
Affected
Hewlett Packard Enterprise (HPE) Instant ON
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.
HPE Networking Instant ON 无线接入点（APs）的 PAPI 协议中存在身份验证绕过漏洞，可能使未认证的邻近攻击者规避现有的身份验证控制机制。成功利用该漏洞将允许攻击者绕过某些现有的身份验证机制，并向目标设备发送未经授权的网络流量。
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing ApplicationAffected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Hewlett Packard Enterprise (HPE) | Instant ON | 0.0.0.0≤ 3.4.1.0 |
affected |
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I. Basic Information for CVE-2026-76730
Vulnerability Information
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Vulnerability Title
Improper PAPI Packet handling leads to unauthorized access in HPE Networking Instant ON APs
Source: CVE Program / CVE List V5
Vulnerability Description
An authentication bypass vulnerability exists in the PAPI protocol of HPE Networking Instant ON APs that could allow an unauthenticated adjacent attacker to circumvent existing authentication controls. Successful exploitation could allow an attacker to circumvent certain existing authentication mechanisms and send unauthorized network traffic to the target device.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Hewlett Packard Enterprise (HPE) | Instant ON | 0.0.0.0 ~ 3.4.1.0 | - |
|
II. Public POCs for CVE-2026-76730
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Other References for CVE-2026-76730 (1)
Same Patch Batch · Hewlett Packard Enterprise (HPE) · 2026-09-29 · 18 CVEs total
| CVE-2026-76722 | 9.8 CRITICAL | Uncontrolled Format String Vulnerabilities lead to Remote Code Execution or Denial-of-Serv |
| CVE-2026-76721 | 9.8 CRITICAL | Unauthenticated Buffer Overflow Vulnerability leads to Remote Code Execution in HPE Networ |
| CVE-2026-76725 | 9.6 CRITICAL | Authentication Bypass in a Management Protocol of HPE Networking Instant ON APs |
| CVE-2026-76724 | 9.6 CRITICAL | Unauthenticated Adjacent Command Injection Vulnerability in HPE Networking Instant ON APs |
| CVE-2026-76723 | 9.6 CRITICAL | Unauthenticated Adjacent Buffer Overflow Vulnerabilities lead to Remote Code Execution in |
| CVE-2026-76726 | 8.1 HIGH | Authentication Bypass Leading to Unauthorized Network Access in HPE Networking Instant ON |
| CVE-2026-76727 | 7.2 HIGH | Authenticated Command Injection Vulnerabilities in HPE Networking Instant ON |
| CVE-2026-76728 | 7.2 HIGH | Authenticated Server-Side Request Forgery Leading to Remote Code Execution in HPE Networki |
| CVE-2026-76729 | 6.6 MEDIUM | Authenticated Format String Vulnerability allows Memory Corruption in HPE Networking Insta |
| CVE-2026-76731 | 6.5 MEDIUM | Authentication Bypass in the Captive Portal of HPE Networking Instant On |
| CVE-2026-76732 | 6.4 MEDIUM | Authenticated Local Privilege Escalation Vulnerability in a Daemon of HPE Networking Insta |
| CVE-2026-76733 | 4.9 MEDIUM | Authenticated Denial-of-Service Vulnerability in HPE Networking Instant On API Endpoint |
| CVE-2026-76734 | 4.8 MEDIUM | Unauthenticated Memory Corruption Vulnerability leads to Denial-of-Service in HPE Networki |
| CVE-2026-76735 | 4.1 MEDIUM | Authenticated Local Sensitive Information Disclosure in HPE Networking Instant On |
| CVE-2026-76736 | 3.3 LOW | Authenticated Local Buffer Overflow Vulnerability leads to Denial-of-Service in HPE Networ |
| CVE-2026-76737 | 3.0 LOW | Authenticated Local Path Traversal Vulnerability Leads to Denial-of-Service in HPE Network |
| CVE-2026-76738 | 2.7 LOW | Authenticated Buffer Overflow Vulnerability in the API Endpoint of HPE Networking Instant |
IV. Related Vulnerabilities
Same product: Instant ON
-
CVE-2026-76738
Authenticated Buffer Overflow Vulnerability in the API Endpo -
CVE-2026-76737
Authenticated Local Path Traversal Vulnerability Leads to De -
CVE-2026-76736
Authenticated Local Buffer Overflow Vulnerability leads to D -
CVE-2026-76735
Authenticated Local Sensitive Information Disclosure in HPE -
CVE-2026-76734
Unauthenticated Memory Corruption Vulnerability leads to Den
Same vendor: Hewlett Packard Enterprise (HPE)
-
CVE-2026-76738
Authenticated Buffer Overflow Vulnerability in the API Endpo -
CVE-2026-76737
Authenticated Local Path Traversal Vulnerability Leads to De -
CVE-2026-76736
Authenticated Local Buffer Overflow Vulnerability leads to D -
CVE-2026-76735
Authenticated Local Sensitive Information Disclosure in HPE -
CVE-2026-76734
Unauthenticated Memory Corruption Vulnerability leads to Den
V. Comments for CVE-2026-76730
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