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Review reviewHigh

CVE-2026-0265

Palo Alto Networks Cloud NGFW, PAN-OS, Prisma Access

An authentication bypass vulnerability in Palo Alto Networks PAN-OS® software enables an unauthenticated attacker with network access to bypass authentication controls when Cloud Authentication Service (CAS) is enabled. The risk is higher if CAS is enabled on the management interface and lower when any other login interfaces are used. The risk of this issue is greatly reduced if you secure access to the management web interface by restricting access to only trusted internal IP addresses according to our recommended best practice deployment guidelines https://live.paloaltonetworks.com/t5/com...

CVSS
7.2
EPSS
0.38%
30.7% percentile
CISA KEV
Not listed
Published
2026.05.14
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability0.38%
Technical severityCVSS 7.2

Vulnerability overview

An authentication bypass vulnerability in Palo Alto Networks PAN-OS® software enables an unauthenticated attacker with network access to bypass authentication controls when Cloud Authentication Service (CAS) is enabled. The risk is higher if CAS is enabled on the management interface and lower when any other login interfaces are used. The risk of this issue is greatly reduced if you secure access to the management web interface by restricting access to only trusted internal IP addresses according to our recommended best practice deployment guidelines https://live.paloaltonetworks.com/t5/com...

Affected product and versions

Product
Palo Alto Networks Cloud NGFW, PAN-OS, Prisma Access
Affected versions
>= 12.1.0 < 12.1.7, 12.1.4-h5, >= 11.2.0 < 11.2.12, 11.2.10-h6, 11.2.7-h13, 11.2.4-h17, >= 11.1.0 < 11.1.15, 11.1.13-h5, 11.1.10-h25, 11.1.7-h6, 11.1.6-h32, 11.1.4-h33, >= 10.2.0 < 10.2.18-h6, 10.2.16-h7, 10.2.13-h21, 10.2.10-h36, 10.2.7-h34, < 10.2.7, >= 10.2.8 < 10.2.10, >= 10.2.11 < 10.2.13, >= 10.2.14 < 10.2.16, 10.2.7, 10.2.10, 10.2.13, 10.2.16, 10.2.17, 10.2.18, >= 11.1.0 < 11.1.4, >= 11.1.5 < 11.1.6, >= 11.1.8 < 11.1.10, >= 11.1.11 < 11.1.13, 11.1.4, 11.1.6
Fixed versions
10.2.7, 10.2.10, 10.2.13, 10.2.16, 11.1.4, 11.1.6, 11.1.10, 11.1.13, 11.2.4, 11.2.7, 11.2.10, 12.1.4, 12.1.7

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that Palo Alto Networks Cloud NGFW, PAN-OS, Prisma Access and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/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:Red
CWE
CWE-347