CVE-2026-0310
CVE-2026-0310 PAN-OS: Buffer Overflow Vulnerability via XML Processing (Severity: HIGH)
Published Sep 9, 2026 · updated Oct 15, 2026 · Palo Alto Networks
A buffer overflow vulnerability in the XML processing functionality of Palo Alto Networks PAN-OS® software enables an unauthenticated attacker with network access to the management web or dataplane interface to cause a denial of service (DoS) condition on VM-Series firewalls or execute arbitrary code with root privileges on the PA-Series firewalls. The security risk posed by this issue is minimized when the management interface is restricted to only trusted internal IP addresses according to our recommended best practice deployment guidelines https://live.paloaltonetworks.com/t5/community-blogs/tips-amp-tricks-how-to-secure-the-management-access-of-your-palo/ba-p/464431 . Panorama is impacted by this vulnerability.
Code
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No public source repository is identified for this product.
Timeline
Detection, updates, and resolution for this record.
Sep 10, 2026 · NIST NVD
Detected
A buffer overflow vulnerability in the XML processing functionality of Palo Alto Networks PAN-OS® software enables an unauthenticated attacker with network access to the management web or dataplane interface to cause a denial of service (DoS) condition on VM-Series firewalls or execute arbitrary code with root privileges on the PA-Series firewalls. The security risk posed by this issue is minimize
Oct 15, 2026 · NIST NVD
Updated
A buffer overflow vulnerability in the XML processing functionality of Palo Alto Networks PAN-OS® software enables an unauthenticated attacker with network access to the management web or dataplane interface to cause a denial of service (DoS) condition on VM-Series firewalls or execute arbitrary code with root privileges on the PA-Series firewalls. The security risk posed by this issue is minimize
Sources
- CVE.orgVulnerability recordCVE-2026-0310
Official CVE identifier
cve.org - FIRST EPSSExploitation probabilityCVE-2026-0310
30-day exploitation probability 0.4%
first.org - NIST NVDVulnerability recordCVE-2026-0310
A buffer overflow vulnerability in the XML processing functionality of Palo Alto Networks PAN-OS® software enables an unauthenticated attacker with network access to the management web or dataplane interface to cause a denial of service (DoS) condition on VM-Series firewalls or e
nvd.nist.gov - Palo Alto NetworksVendor advisoryCVE-2026-0310security.paloaltonetworks.com