CVE-2026-0321

MEDIUM
MEDIUM Priority: 0.02 BB Relevance: 73/100
Published: 2026-10-14 Modified: 2026-11-10 First seen: 2026-11-10 Status: active

Attack Surface

Network Low Complexity No Auth No Interaction

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: None
S: X
AT: None
VC: None
VI: None
VA: High

Description

Denial of service vulnerabilities in Palo Alto Networks PAN-OS® software allow an unauthenticated attacker with network access to cause a denial of service (DoS) condition by sending specially crafted network traffic to or through a dataplane interface. Repeated attempts to trigger this condition result in the firewall entering maintenance mode. Cloud NGFW and Panorama are not affected by this vulnerability.

Affected Software (8)

VendorProductVersion
Palo Alto Networks PAN-OS 12.2.0 < 12.2.4
Palo Alto Networks PAN-OS 12.1.0 < 12.1.10-h2
Palo Alto Networks PAN-OS 11.2.0 < 11.2.16
Palo Alto Networks PAN-OS 11.1.0 < 11.1.16-h3
Palo Alto Networks PAN-OS 10.2.0 < 10.2.18-h12
Palo Alto Networks Prisma Access 12.1.0 < 12.1.7-h8
Palo Alto Networks Prisma Access 11.2.0 < 11.2.7-h21
Palo Alto Networks Prisma Access 10.2.0 < 10.2.10-h41

Bug Bounty Relevance

73 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

6.6 / 10.0 v4.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:N/R:U/V:D/RE:M/U:Amber

EPSS — Exploitation Probability

0.34%
Raw Score 0.003390
Percentile 27.7%
Date 2026-11-14

EPSS Trend

2026-11-14
0.00339
2026-11-13
0.00339
2026-11-12
0.00339
2026-11-10
0.00326
2026-11-09
0.00326

Intelligence Sources

mitre ref →
nvd ref →