How severe is CVE-2026-0276?

CVE-2026-0276 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-0276 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.

What products are affected by CVE-2026-0276?

CVE-2026-0276 affects Paloaltonetworks Cortex Xdr Broker Vm. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-0276?

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-2026-0276 published?

CVE-2026-0276 was published on 2026-07-09 and last updated on 2026-07-16.

CVE-2026-0276

CVE-2026-0276 is a high-severity vulnerability in Paloaltonetworks Cortex Xdr Broker Vm with a CVSS 3.x base score of 7.8. 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-269.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v4: 1.1
EPSS exploit prediction: 0% (1st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-269
Affected product: Paloaltonetworks Cortex Xdr Broker Vm
Published: 2026-07-09
Last modified: 2026-07-16

Description

A privilege escalation vulnerability in Palo Alto Networks Cortex® XDR Broker VM enables a locally authenticated user to perform actions as the root user.

Frequently asked questions

What is CVE-2026-0276?: A privilege escalation vulnerability in Palo Alto Networks Cortex® XDR Broker VM enables a locally authenticated user to perform actions as the root user.
How severe is CVE-2026-0276?: CVE-2026-0276 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-0276 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.
What products are affected by CVE-2026-0276?: CVE-2026-0276 affects Paloaltonetworks Cortex Xdr Broker Vm. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-0276?: 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-2026-0276 published?: CVE-2026-0276 was published on 2026-07-09 and last updated on 2026-07-16.

References

https://security.paloaltonetworks.com/CVE-2026-0276

Affected products (1)

cpe:2.3:a:paloaltonetworks:cortex_xdr_broker_vm:*:*:*:*:*:*:*:*

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