How severe is CVE-2026-0264?

CVE-2026-0264 has a CVSS 4.0 base score of 7.2, rated high severity.

Is CVE-2026-0264 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (33rd percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-0264?

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.

Does CVE-2026-0264 have an EU (EUVD) identifier?

Yes. CVE-2026-0264 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-30065.

When was CVE-2026-0264 published?

CVE-2026-0264 was published on 2026-05-13 and last updated on 2026-06-17.

CVE-2026-0264

CVE-2026-0264 is a high-severity vulnerability with a CVSS 4.0 base score of 7.2. 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-122.

Key facts

Severity: High (CVSS 4.0 base score 7.2)
EPSS exploit prediction: 0% (33rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-30065
Weakness: CWE-122
Published: 2026-05-13
Last modified: 2026-06-17

Description

A buffer overflow vulnerability in the DNS proxy and DNS Server features of Palo Alto Networks PAN-OS® Software allows an unauthenticated attacker with network access to cause a denial of service (DoS) condition (all PAN-OS platforms except Cloud NGFW and Prisma Access) or potentially execute arbitrary code by sending specially crafted network traffic (PA-Series hardware only). Panorama, Cloud NGFW, and Prisma® Access are not impacted by this vulnerability.

Frequently asked questions

What is CVE-2026-0264?: A buffer overflow vulnerability in the DNS proxy and DNS Server features of Palo Alto Networks PAN-OS® Software allows an unauthenticated attacker with network access to cause a denial of service (DoS) condition (all PAN-OS platforms except Cloud NGFW and Prisma Access) or potentially execute arbitrary code by sending specially crafted network traffic (PA-Series hardware only). Panorama, Cloud NGFW, and Prisma® Access are not impacted by this vulnerability.
How severe is CVE-2026-0264?: CVE-2026-0264 has a CVSS 4.0 base score of 7.2, rated high severity.
Is CVE-2026-0264 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (33rd percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-0264?: 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.
Does CVE-2026-0264 have an EU (EUVD) identifier?: Yes. CVE-2026-0264 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-30065.
When was CVE-2026-0264 published?: CVE-2026-0264 was published on 2026-05-13 and last updated on 2026-06-17.

References

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