CVE-2026-76730: medium-severity vulnerability in Hewlett Packard Enterprise (HPE) Instant ON
Improper PAPI Packet handling leads to unauthorized access in HPE Networking Instant ON APs
Published · Updated
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 6.5epss 0.2%
exploitation probability
0.2%top 90% of all CVEs
observed exploitation
nono source reports it
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.
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Affected products
Hewlett Packard Enterprise (HPE) · Instant ONRelated CVEs — Hewlett Packard Enterprise (HPE) Instant ON
In the same product, most dangerous first.
CVE-2026-76724CRITICALUnauthenticated Adjacent Command Injection Vulnerability in HPE Networking Instant ON APs Command Line Interface (CLI) Accessed by the PAPI ProtocolEPSS 1.0%CVE-2026-76727HIGHAuthenticated Command Injection Vulnerabilities in HPE Networking Instant ONEPSS 1.0%CVE-2026-76721CRITICALUnauthenticated Buffer Overflow Vulnerability leads to Remote Code Execution in HPE Networking Instant ON APsEPSS 0.6%CVE-2026-76722CRITICALUncontrolled Format String Vulnerabilities lead to Remote Code Execution or Denial-of-Service in HPE Networking Instant ON APsEPSS 0.5%CVE-2026-76728HIGHAuthenticated Server-Side Request Forgery Leading to Remote Code Execution in HPE Networking Instant ON APsEPSS 0.5%CVE-2026-76729MEDIUMAuthenticated Format String Vulnerability allows Memory Corruption in HPE Networking Instant ON API EndpointEPSS 0.4%