What is CVE-2026-76753?

CVE-2026-76753 is a critical-severity vulnerability in Hewlett Packard Enterprise (HPE) Clearpass Policy Manager (Cppm), classified under Use of Externally-Controlled Format String. CVSS score: 9.8/10. Published 2026-10-06.

How severe is CVE-2026-76753?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Vulnerability in Hewlett Packard Enterprise (HPE) Clearpass Policy Manager (Cppm)

CVE-2026-76753

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.

Published 2026-10-06 · last modified 2026-10-07.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Hewlett Packard Enterprise (HPE) Clearpass Policy Manager (Cppm)

Weakness classification (CWE)

CWE-134 — Use of Externally-Controlled Format String

References

support.hpe.com/hpesc/public/docDisplay

Frequently asked questions

What is CVE-2026-76753?: CVE-2026-76753 is a critical-severity vulnerability in Hewlett Packard Enterprise (HPE) Clearpass Policy Manager (Cppm), classified under Use of Externally-Controlled Format String. CVSS score: 9.8/10. Published 2026-10-06.
How severe is CVE-2026-76753?: Critical severity. CVSS v3 base score is 9.8 out of 10.