ClearPass Policy Manager (CPPM): Missing Support for Integrity Check
CVE-2026-76751 is a critical-severity missing support for integrity check vulnerability in ClearPass Policy Manager (CPPM) from Hewlett Packard Enterprise, with a CVSS 3.1 base score of 9.8 out of 10. It can be exploited remotely over the network by an unauthenticated attacker, without any action from a user. Affected ClearPass Policy Manager (CPPM) versions: 6.14.0 and earlier; 6.11.0 through 6.11.15. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 0.3% chance of exploitation within 30 days, which is low compared with other CVEs.
Critical severity: a successful attack would have severe impact.
What to do
- Check which version of ClearPass Policy Manager (CPPM) you run against the affected versions below, and install the vendor's latest release.
- Until you can update, restrict network access to the affected service so it is not reachable from untrusted networks.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| Hewlett Packard Enterprise | ClearPass Policy Manager (CPPM) | 6.14.0 and earlier; 6.11.0 through 6.11.15 | Not stated |
Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.
How the severity score breaks down
- Attack vector
- NetworkCan be exploited remotely over a network, including the internet.
- Attack complexity
- LowNo special conditions are needed; the attack works reliably.
- Privileges required
- NoneNo account or login is needed.
- User interaction
- NoneNo action by a victim is required.
- Scope
- UnchangedImpact stays within the vulnerable component.
- Confidentiality
- HighAll data handled by the component can be read.
- Integrity
- HighData or code can be modified at will.
- Availability
- HighThe component can be taken down completely.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. Scored by CNA (hpe.com).
Official description
A missing integrity verification vulnerability exists in the OnGuard agent of ClearPass Policy Manager. Successful exploitation could allow an unauthenticated, remote attacker to execute arbitrary code on the affected endpoint with the elevated privileges of the agent.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Missing Support for Integrity Check
The product uses a transmission protocol that does not include a mechanism for verifying the integrity of the data during transmission, such as a checksum.
How developers prevent this class of flaw
- Add an appropriately sized checksum to the protocol, ensuring that data received may be simply validated before it is parsed and used.
- Ensure that the checksums present in the protocol design are properly implemented and added to each message before it is sent.
More Missing Support for Integrity Check vulnerabilities (CWE-353)
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: yes, technical impact: total).
- Record last changed materially (score, affected products, status or references).
References
Other vulnerabilities in ClearPass Policy Manager (CPPM)
- 7.2 High severity
- 7.2 High severity
- 7.3 High severity
- 7.8 High severity
- 7.8 High severity
- 7.8 High severity
Recent Missing Support for Integrity Check vulnerabilities
- 9.8 Critical severity
- 8.1 High severity
- 8.4 High severity
- 7.5 High severity
- 8.7 High severity
- 7.1 High severity
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