Local Authenticated Buffer Overflow Vulnerability in the ClearPass Policy Manager OnGuard Agent

published 2026-10-06 33 d ago modified 2026-10-08 32 d ago also EUVD-2026-93894

cvss: 7.8; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.1%; EPSS 0.1% chance of exploitation in 30 days, percentile 1%
public exploits: 0; none known

A buffer overflow vulnerability exists in the OnGuard agent of ClearPass Policy Manager. Successful exploitation could allow an authenticated local user to execute arbitrary code with elevated privileges on the affected host or to disrupt the availability of the affected service.

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: total
Assessed: 33 d ago (2026-10-07)

Exploit prediction

0.12% chance of exploitation in the next 30 days, higher than 1% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	7.8	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

Hewlett Packard Enterprise (HPE) ClearPass Policy Manager (CPPM)

Classification

Weakness

CWE-120 Buffer Copy without Checking Size of Input

References

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

Sources

CVE List CVE-2026-79808
NVD CVE-2026-79808

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Summary