CVE-2026-0264

What it is

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.

At a glance

Exploitability

Can be exploited over the network without logging in. High risk of data exposure, data tampering, service disruption.

Exploit odds

0.5% chance of exploitation in the next 30 days (EPSS).

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2026-05-13 18:16 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-10-26 17:10 UTC Last updatedMost recent change to the record

Details

Published

2026-05-13 18:16 UTC

Last modified

2026-10-26 17:10 UTC

Exploit probability

0.5% · EPSS, next 30 days

Weakness

CWE-122

Record status

Analyzed

Affected

• Paloaltonetworks pan-os < 10.2.7
• Paloaltonetworks pan-os < 10.2.10
• Paloaltonetworks pan-os < 10.2.13
• Paloaltonetworks pan-os < 10.2.16
• Paloaltonetworks pan-os 10.2.7
• Paloaltonetworks pan-os 10.2.10
• Paloaltonetworks pan-os 10.2.13
• Paloaltonetworks pan-os 10.2.16

Attack profile CVSS 4.0 · 7.2

Attack vector

Network

Complexity

High

Attack requirements

None

Privileges needed

None

User interaction

None

Confidentiality

High

Integrity

High

Availability

High