Uncontrolled Format String Vulnerabilities lead to Remote Code Execution or Denial-of-Service in HPE Networking Instant ON APs

published 2026-09-29 last mo. modified 2026-10-01 last mo. also EUVD-2026-89341

cvss: 9.8; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.5%; EPSS 0.5% chance of exploitation in 30 days, percentile 45%
public exploits: 0; none known

Uncontrolled Format string vulnerabilities exist in the affected interface of HPE Networking Instant ON APs that could allow an unauthenticated remote attacker to run arbitrary commands on the underlying host. Successful exploitation could result in a Denial-of-service or potential remote code execution.

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CISA SSVC

Exploitation: none
Automatable: yes
Technical impact: total
Assessed: last mo. (2026-09-30)

Exploit prediction

0.54% chance of exploitation in the next 30 days, higher than 45% of all scored CVEs (FIRST EPSS, 2026-11-11).

CVSS scores

assigned by	version	score	vector
CNA	3.1	9.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

Hewlett Packard Enterprise (HPE) Instant ON

Classification

Weakness

CWE-134 Use of Externally-Controlled Format String

References

support.hpe.com /hpesc/public/docDisplay?docId=hpesbnw05150en_us&docLocale=en_US

Sources

CVE List CVE-2026-76722
NVD CVE-2026-76722

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