Answer in brief
CVE-2026-0321 records a Medium severity (CVSS 6.6) vulnerability in PAN-OS: Denial of Service (DoS) Vulnerabilities in Network Services. The current sources do not mark it as known exploited. The current feed maps Palo Alto Networks/PAN-OS (generic), Palo Alto Networks/Prisma Access (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 6.6. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Palo Alto Networks/PAN-OS (generic), Palo Alto Networks/Prisma Access (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Palo Alto Networks/PAN-OSgeneric | >=12.2.0 <12.2.4 || >=12.1.0 <12.1.10-h2 || >=11.2.0 <11.2.16 || >=11.1.0 <11.1.16-h3 || >=10.2.0 <10.2.18-h12 | 12.2.4, 12.1.10-h2, 11.2.16, 11.1.16-h3, 10.2.18-h12 |
| Palo Alto Networks/Prisma Accessgeneric | >=12.1.0 <12.1.7-h8 || >=11.2.0 <11.2.7-h21 || >=10.2.0 <10.2.10-h41 | 12.1.7-h8, 11.2.7-h21, 10.2.10-h41 |
Published upstream
Oct 14, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 14, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Oct 14, 2026
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.
Quoted source text, attributed separately from HOL analysis.