6.6

CVE-2026-0321: palo alto networks pan-os

CVSS: 6.6v4.0MediumAwaiting analysis
Published 14-10-2026Last modified 15-10-2026
Open JSON

Vulnerability summary

CVE-2026-0321 is a medium (CVSS 6.6) vulnerability in palo alto networks pan-os. EPSS estimates a 0.33% chance of exploitation in the next 30 days, higher than 24.3% of scored vulnerabilities.

Overall risk
26/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.6/10
010
Medium · v4.0 (CVE.org)
EPSS score
0.33%
0%100%
Low · Change unavailable
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 14-10-2026
    PublishedVulnerability first disclosed.
  2. 15-10-2026
    Last modifiedVulnerability information updated.

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.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.33%

Chance of exploitation in the next 30 days

Percentile

24%

Versus all other CVEs

30-day change

Change unavailable

Change unavailable

15-10-202621-10-2026
EPSS score
0.33%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Palo alto networks2 products
  • pan-os≥ 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
  • prisma access≥ 12.1.0, < 12.1.7-h8 | ≥ 11.2.0, < 11.2.7-h21 | ≥ 10.2.0, < 10.2.10-h41

1 vendor · 2 products

References

1 links