CVE-2026-79808 Hewlett Packard Enterprise (HPE) CVE debrief

Who should care

Defenders responsible for ClearPass Policy Manager (CPPM) deployments, particularly those using versions 6.11.0 and 6.14.0 or earlier, should assess exposure and prioritize patching.

Why it matters

CVE-2026-79808 is a local authenticated buffer overflow vulnerability in ClearPass Policy Manager OnGuard Agent. Defenders should prioritize verifying exposure and applying patches for affected versions.

• Potential elevation of privileges for authenticated local users
• Possible disruption of the affected service

Technical summary

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. The vulnerability affects ClearPass Policy Manager (CPPM) versions 6.11.0 and 6.14.0 or earlier. The OnGuard agent is a component of ClearPass Policy Manager, and the vulnerability has the potential to impact the security of the affected system. Defenders should prioritize verifying exposure and applying patches for affected versions.

Defensive priority

Defenders should prioritize verifying exposure and applying patches for ClearPass Policy Manager (CPPM) versions 6.11.0 and 6.14.0 or earlier.

Recommended defensive actions

• Verify exposure of ClearPass Policy Manager (CPPM) versions 6.11.0 and 6.14.0 or earlier
• Apply patches or updates provided by the vendor
• Monitor for potential exploitation attempts
• Review compensating controls for exposed systems while remediation is scheduled and verified
• Check relevant monitoring, detection, and logs for exposed assets that need extra review
• Track exceptions, retest remediated assets, and close the item only after evidence is documented
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up

Evidence notes

The CVE Program record and NVD vulnerability detail provide official information about the vulnerability. However, details about exploitation, impact, and remediation are limited. The source item provides additional details about the vulnerability, but it does not offer specific information on exploitation or remediation. Defenders should verify exposure and apply patches for affected versions of ClearPass Policy Manager (CPPM). The CVE record was published on 2026-10-06T19:17:10.985Z and has not been modified since then.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.