CVE Tools
Sign in

CVE-2026-0264

PAN-OS: Heap-Based Buffer Overflow in DNS Proxy and DNS Server Allows Unauthenticated Remote Code Execution

Published: May 13, 2026Updated: Jul 14, 2026 Sources: CVE List NVD BDU csafCWE-122
9.8CRITICAL
NVD MITRE
EPSS Score
0.5%
Top 61.5%
CISA KEV
Not in KEV
Exploits
0 Known
Remediation
Patch Available
Self-Check
OpenVAS

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-122

Affected Products

Palo Alto Networks
commercial·USaka pan-os, prisma access, cloud ngfw
Cloud NGFW
Security Products
PAN-OS
Security Products
Prisma Access
Security Products
Palo Alto Networks Inc.
commercial·USaka paloaltonetworks, panw, palo alto networks, pan inc.
PAN-OS
Security Products
siemens
commercial·DEaka siemens ag
ruggedcom ape1808 firmware
ICS / OT / IoT
and 1 more affected products View all →

Exploitability

0 exploit sources identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details
Official Patch Available
Workaround Available
Is your org exposed to CVE-2026-0264?We can run the check for you — a free external exposure review, no install. Check my exposure

Attack Graph

Products CVE Techniques Tactics

Click technique nodes for MITRE ATT&CK details · drag to pan · Ctrl/⌘ + scroll to zoom, or go fullscreen.

MITRE ATT&CK

1 technique
Privilege Escalation
View detailed technique mapping

References

https://security.paloaltonetworks.com/CVE-2026-0264
security.paloaltonetworks.com
https://cert-portal.siemens.com/productcert/html/ssa-967325.html
cert-portal.siemens.com
https://cert-portal.siemens.com/productcert/csaf/ssa-967325.json
cert-portal.siemens.com
and 32 more references View all →

Unlock Complete Vulnerability Intelligence

Get the full picture for CVE-2026-0264 and every CVE in our database. Create a free account — no credit card required.

Create Free Account
Plain-language analysis
Impact assessment and exploitation scenario in plain English
Attack graph visualization
Interactive attack path and kill chain mapping
Exploit details & PoC links
ExploitDB, Metasploit, GitHub PoCs with direct links
Nuclei scanner templates
Ready-to-use vulnerability scanner templates
Full remediation guide
Patch instructions, workarounds, and compliance impact
Interactive AI chat
Ask questions about this vulnerability in natural language
Related vulnerabilities
Semantically similar CVEs and attack patterns
REST API & MCP access
Integrate vulnerability data into your workflows