Unauthenticated Format String Vulnerability in HPE Networking ClearPass Policy Manager

published 2026-10-06 33 d ago modified 2026-10-08 32 d ago also EUVD-2026-93880

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 44%
public exploits: 0; none known

A format string vulnerability in an affected service interface of HPE Networking ClearPass Policy Manager could allow an unauthenticated remote attacker to corrupt process memory. Successful exploitation could allow an attacker to execute arbitrary code.

CISA SSVC

Exploitation: none
Automatable: yes
Technical impact: total
Assessed: 33 d ago (2026-10-07)

Exploit prediction

0.53% chance of exploitation in the next 30 days, higher than 44% of all scored CVEs (FIRST EPSS, 2026-11-08).

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) ClearPass Policy Manager (CPPM)

Classification

Weakness

CWE-134 Use of Externally-Controlled Format String

References

support.hpe.com /hpesc/public/docDisplay?docId=hpesbnw05158en_us&docLocale=en_US

Sources

CVE List CVE-2026-76753
NVD CVE-2026-76753

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Summary