How severe is CVE-2026-8864?

CVE-2026-8864 has a CVSS 4.0 base score of 7.3, rated high severity.

Is CVE-2026-8864 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (1st percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-8864?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2026-8864 published?

CVE-2026-8864 was published on 2026-06-30 and last updated on 2026-07-02.

CVE-2026-8864

CVE-2026-8864 is a high-severity vulnerability with a CVSS 4.0 base score of 7.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-428.

Key facts

Severity: High (CVSS 4.0 base score 7.3)
EPSS exploit prediction: 0% (1st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-428
Published: 2026-06-30
Last modified: 2026-07-02

Description

The HP Fan Control App might allow local escalation of privileges. An updated version of HP Fan Control App has been released to mitigate this potential vulnerability.

Frequently asked questions

What is CVE-2026-8864?: The HP Fan Control App might allow local escalation of privileges. An updated version of HP Fan Control App has been released to mitigate this potential vulnerability.
How severe is CVE-2026-8864?: CVE-2026-8864 has a CVSS 4.0 base score of 7.3, rated high severity.
Is CVE-2026-8864 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (1st percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-8864?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2026-8864 published?: CVE-2026-8864 was published on 2026-06-30 and last updated on 2026-07-02.

References

https://support.hp.com/us-en/document/ish_15217742-15217770-16/hpsbhf04122

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