Buffer Overflow Vulnerability in Palo Alto Networks PAN-OS Software
CVE-2026-0310

5.2MEDIUM

Key Information:

Vendor

Palo Alto Networks
Status
Cloud Ngfw
Pan-os
Prisma Access
Vendor
CVE Published:
10 September 2026

Badges

👾 Exploit Exists

What is CVE-2026-0310?

A buffer overflow vulnerability exists within the XML processing component of Palo Alto Networks' PAN-OS software. This flaw allows unauthenticated attackers with network access to the management web or data plane interface to trigger a denial of service (DoS) condition on VM-Series firewalls. Additionally, it poses the risk of enabling the execution of arbitrary code with root privileges on PA-Series firewalls. Organizations are advised to limit access to the management interface based on trusted internal IP addresses to mitigate potential risks.

Affected Version(s)

Cloud NGFW AWS All

PAN-OS 12.2.0 < 12.2.3

PAN-OS 12.1.0 < 12.1.4-h10

References

https://security.paloaltonetworks.com/CVE-2026-0310
vendor-advisory

CVSS V4

Score:
5.2
Severity:
MEDIUM
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Adjacent Network
Attack Complexity:
High
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Palo Alto Networks thanks our internal security research teams for discovering and reporting this issue.
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