01 Record

CVE-2026-0269

PAN-OS: Denial of Service (DoS) in Tunnel Traffic Processing

MediumPUBLISHEDCNA: palo_alto

CNA base score4.6 CVSS v4.0CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/AU:N/R:A/V:D/RE:M/U:Amber

View raw JSON

02 Description

PAN-OS: Denial of Service (DoS) in Tunnel Traffic Processing

03 Exploitation and scoring

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.22% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 12.8% of scored records. A rank, not a probability.

NVD base score

4.6 (CVSS v4.0), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:4.0/AV:A/AC:L/AT:N/PR:L/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:A/V:D/RE:M/U:Amber

NVD analysis status

Modified. NVD last modified this record on 2026-07-23.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published

2026-06-10 20:54Z4 MO AGO

Last updated

2026-10-15 01:11Z14 DAYS AGO

Reserved

2025-11-03

Assigning CNA

palo_alto

Record state

PUBLISHED

Severity

Medium (CVSS 4.6)

CNA CVSS vector

CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/AU:N/R:A/V:D/RE:M/U:Amber

Weaknesses

CWE-754Improper Check for Unusual or Exceptional ConditionsClass

Data version

5.2

Document digest

403baa8d35a7059a1be510793d9da343931e8023f287abe8a2e8662561b3957f

05 Affected products

VendorProductVersionsPlatforms

Palo Alto NetworksCloud NGFWNot specified—

Palo Alto NetworksPAN-OS12.1.0 to < 12.1.5, 11.2.0 to < 11.2.10, 11.1.0 to < 11.1.6-h21, 10.2.0 to < 10.2.16-h6—

Palo Alto NetworksPanoramaNot specified—

Palo Alto NetworksPrisma AccessNot specified—

06 References

security.paloaltonetworks.comhttps://security.paloaltonetworks.com/CVE-2026-0269vendor-advisory
cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/html/ssa-967325.html

07 Remediation

VERSION MINOR VERSION SUGGESTED SOLUTION Cloud NGFW No action needed. PAN-OS 12.1 12.1.2 through 12.1.4-h* Upgrade to 12.1.4-h5 or 12.1.5 or later. PAN-OS 11.2 11.2.8 through 11.2.9 Upgrade to 11.2.10 or later. 11.2.5 through 11.2.7-h* Upgrade to 11.2.7-h4 or 11.2.10 or later. 11.2.0 through 11.2.4-h* Upgrade to 11.2.4-h17 or 11.2.10 or later. PAN-OS 11.1 11.1.11 or later Upgrade to 11.1.12 or later. 11.1.7 through 11.1.10-h* Upgrade to 11.1.10-h7 or 11.1.12 or later. 11.1.5 through 11.1.6-h* Upgrade to 11.1.6-h21 or 11.1.12 or later. 11.1.0 through 11.1.4-h* Upgrade to 11.1.4-h33 or 11.1.12 or later. PAN-OS 10.2 10.2.17 or later Upgrade to 10.2.18 or later. 10.2.4 through 10.2.16-h* Upgrade to 10.2.16-h6 or 10.2.18 or later. 10.2.11 through 10.2.13-h* Upgrade to 10.2.13-h21 or 10.2.18 or later. 10.2.8 through 10.2.10-h* Upgrade to 10.2.10-h36 or 10.2.18 or later. 10.2.0 through 10.2.7-h* Upgrade to 10.2.7-h34 or 10.2.18 or later. All older Upgrade to a supported fixed version. unsupported PAN-OS versions Panorama No action needed. Prisma Access No action needed.