CVE-2026-0265· NVD / CVE Program· CNA palo_alto

PAN-OS: Authentication Bypass with Cloud Authentication Service (CAS) enabled

Noroxi assessment

Priority: This week (action score 60/100)

A ready-made attack module is public (Metasploit); exploiting it takes no special expertise.
A ready-made attack tool exists and the flaw can be exploited over the network without an account, so priority is at least “This week”.
Probability of exploitation in the next 30 days: 1% (FIRST EPSS); higher than 64.1% of all records.
Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
Fixed version: Palo Alto Networks PAN-OS 10.2.10-h36, 10.2.13-h21, 10.2.16-h7.

Don’t wait for the next maintenance window. Upgrade to Palo Alto Networks PAN-OS 10.2.10-h36, 10.2.13-h21, 10.2.16-h7 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

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/community-blogs/tips-amp-tricks-how-to-secure-the-management-access-of-your-palo/ba-p/464431 . This issue is applicable to PAN-OS software on PA-Series and VM-Series firewalls and on Panorama (virtual and M-Series). Cloud NGFW and Prisma Access® are not impacted by this vulnerability.

HighCVSS 7.2 · v4.0—Weaponized Fix available

BDU:2026-07004

Published: May 13, 2026
Updated: Oct 15, 2026
EPSS: 1.0% · 64th percentile
CWE: CWE-347

Report tools

JSON

Action score

This week

Don’t wait for the next maintenance window.

CVSS: 28 / 40 · 7.2 / 10
CISA KEV: 0 / 30 · Not listed
EPSS: 0 / 30 · 1.0%
Ready-made attack tool: 32 / 60 · floor: at least 60

CISA SSVC decision

Exploitation: none
Automatable: no
Technical impact: total

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD: —
CNA · palo_alto: 7.2; NVD has not scored this yet; the score shown is the CNA’s.

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/AU:N/R:U/V:D/RE:M/U:Red

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

Not in KEV: no record of exploitation in the wild
Weaponized exploit exists
A fix has been released

If any of these changes, we'll tell you in the daily email digest.

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Is your version affected? Check it

Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

We use this product, ask for help

Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

Vendor	Product	CPE
paloaltonetworks	pan-os	cpe:2.3:o:paloaltonetworks:pan-os
siemens	ruggedcom ape1808 firmware	cpe:2.3:o:siemens:ruggedcom_ape1808_firmware
siemens	ruggedcom ape1808	cpe:2.3:h:siemens:ruggedcom_ape1808

Using pan-os? Add it to your stack and be the first to know about CVEs like this one. (Firewall)

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

paloaltonetworks pan-os11.2.8 and later · before 11.2.10
paloaltonetworks pan-os10.2.8 and later · before 10.2.10
paloaltonetworks pan-os10.2.11 and later · before 10.2.13
paloaltonetworks pan-os10.2.14 and later · before 10.2.16
paloaltonetworks pan-os11.1.0 and later · before 11.1.4
paloaltonetworks pan-os11.1.5 and later · before 11.1.6
paloaltonetworks pan-os11.1.8 and later · before 11.1.10
paloaltonetworks pan-os11.1.11 and later · before 11.1.13
paloaltonetworks pan-osbefore 10.2.7
paloaltonetworks pan-os12.1.5 and later · before 12.1.7
paloaltonetworks pan-os11.2.0 and later · before 11.2.4
paloaltonetworks pan-os11.2.5 and later · before 11.2.7
paloaltonetworks pan-os12.1.0 and later · before 12.1.4
paloaltonetworks pan-os10.2.10
paloaltonetworks pan-os10.2.13
paloaltonetworks pan-os10.2.16
paloaltonetworks pan-os10.2.17
paloaltonetworks pan-os10.2.18
paloaltonetworks pan-os10.2.7
paloaltonetworks pan-os11.1.10

Versions reported by the vendor

Affected version ranges reported by the assigning authority (palo_alto). Independent of NVD's CPE analysis and usually ahead of it.

Palo Alto Networks Cloud NGFW
- Allnot affected
Palo Alto Networks PAN-OS
- 12.1.0 and later · before 12.1.7, 12.1.4-h5affectedfixed in 12.1.4-h5, 12.1.7
- 11.2.0 and later · before 11.2.12, 11.2.10-h6, 11.2.7-h13, 11.2.4-h17affectedfixed in 11.2.4-h17, 11.2.7-h13, 11.2.10-h6, 11.2.12
- 11.1.0 and later · before 11.1.15, 11.1.13-h5, 11.1.10-h25, 11.1.7-h6, 11.1.6-h32, 11.1.4-h33affectedfixed in 11.1.4-h33, 11.1.6-h32, 11.1.7-h6, 11.1.10-h25, 11.1.13-h5, 11.1.15
- 10.2.0 and later · before 10.2.18-h6, 10.2.16-h7, 10.2.13-h21, 10.2.10-h36, 10.2.7-h34affectedfixed in 10.2.7-h34, 10.2.10-h36, 10.2.13-h21, 10.2.16-h7, 10.2.18-h6
Palo Alto Networks Prisma Access
- Allnot affected

Same product

paloaltonetworks: all records

Other highest-scoring records for the same primary product.

CVE-2024-3400PAN-OS: Arbitrary File Creation Leads to OS Command Injection Vulnerability in GlobalProtectKEV
100Now
CVE-2017-15944Palo Alto Networks PAN-OS before 6.1.19, 7.0.x before 7.0.19, 7.1.x before 7.1.14, and 8.0.x before 8.0.6 allows remote attackers to executeKEV
99Now
CVE-2024-0012PAN-OS: Authentication Bypass in the Management Web Interface (PAN-SA-2024-0015)KEV
97Now

Published before and after this one in the same product

← EarlierCVE-2026-0263May 13, 2026 · PAN-OS: Remote Code Execution (RCE) in IKEv2 Processing
28Monitor
← EarlierCVE-2026-0264May 13, 2026 · PAN-OS: Heap-Based Buffer Overflow in DNS Proxy and DNS Server Allows Unauthenticated Remote Code Execution
28Monitor
Later →CVE-2026-0256May 13, 2026 · PAN-OS: Stored Cross-Site Scripting (XSS) Vulnerability in the Web Interface
17Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / package	Fixed version	Source
Palo Alto Networks PAN-OS	10.2.10-h36	Vendor (CNA)
Palo Alto Networks PAN-OS	10.2.13-h21	Vendor (CNA)
Palo Alto Networks PAN-OS	10.2.16-h7	Vendor (CNA)
Palo Alto Networks PAN-OS	10.2.18-h6	Vendor (CNA)
Palo Alto Networks PAN-OS	10.2.7-h34	Vendor (CNA)
Palo Alto Networks PAN-OS	11.1.10-h25	Vendor (CNA)
Palo Alto Networks PAN-OS	11.1.13-h5	Vendor (CNA)
Palo Alto Networks PAN-OS	11.1.15	Vendor (CNA)
Palo Alto Networks PAN-OS	11.1.4-h33	Vendor (CNA)
Palo Alto Networks PAN-OS	11.1.6-h32	Vendor (CNA)
Palo Alto Networks PAN-OS	11.1.7-h6	Vendor (CNA)
Palo Alto Networks PAN-OS	11.2.10-h6	Vendor (CNA)
Palo Alto Networks PAN-OS	11.2.12	Vendor (CNA)
Palo Alto Networks PAN-OS	11.2.4-h17	Vendor (CNA)
Palo Alto Networks PAN-OS	11.2.7-h13	Vendor (CNA)
Palo Alto Networks PAN-OS	12.1.4-h5	Vendor (CNA)
Palo Alto Networks PAN-OS	12.1.7	Vendor (CNA)

Exploit status

Weaponized

A ready exploit tool or active in-the-wild use is known for this vulnerability. This should be your top priority.

Evidence

Metasploit module ×1
Proof-of-concept repository on GitHub ×2

Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.

Public exploit evidence
Source	Kind	Date
Metasploit module	auxiliary/scanner/http/panos_cve_2026_0265PAN-OS GlobalProtect CAS CVE-2026-0265 Vulnerability Checkerauxiliary	2026-05-21
Proof-of-concept repository on GitHub	stars:0	2026-05-17
Proof-of-concept repository on GitHub	stars:3	2026-05-22

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

PublishedMay 13, 2026
First PoCMay 17, 2026+3 d
MetasploitMay 21, 2026+7 d
TodayOct 25, 2026+165 d

EPSS, last 120 days+1% in 7 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

Harsh JaiswalHacktron AI and our internal security research teamsother

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

—

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

CVE-2026-02610 days apartPAN-OS: Authenticated Admin Command Injection Vulnerability
24Monitor
CVE-2026-027328 days apartPAN-OS: Authenticated Admin Command Injection Vulnerability via CLI or Web UI
24Monitor
CVE-2026-02590 days apartWildFire WF-500 and WF-500-B: Arbitrary File Read and Delete Vulnerability in WildFire Appliance (WF-500, WF-500-B)
20Monitor
CVE-2026-028557 days apartPAN-OS: Server-Side Request Forgery Vulnerability in Management Web Interface
18Monitor

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

Anyone who can reach it over the internet can trigger it.
No account or password is required.
No user action is required.
No special conditions are required; it is repeatable.

If successful

Confidentiality
Integrity
Availability

Attack vector: Network
Attack complexity: Low
Privileges required: None
User interaction: None
Scope: X

Weakness class (CWE)

CWE-347 · Improper Verification of Cryptographic Signature

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

nvd-secondary

Root cause

The verifier takes the algorithm to verify with from the token’s own header. Untrusted data ends up deciding its own verification rule.

The bug in code

The whole CWE-347 class

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

1const claims = jwt.verify(token, publicKey);

Fixed

1const claims = jwt.verify(token, publicKey, {
2  algorithms: ["RS256"],
3  issuer: "https://id.example.com",
4  audience: "portal",
5});

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Attack patterns (CAPEC)

ATT&CK techniques

—

Change log

Fix✗ → ✓Sep 28, 2026, 10:10 PM UTC

For records you follow, these changes also arrive as notifications. →

References

security.paloaltonetworks.com/CVE-2026-0265

Show all references (1 more)

cert-portal.siemens.com/productcert/html/ssa-967325.html

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records

Noroxi analysis

What does it mean in your environment?

We use this product, ask for help

Data sources and verification

CNA: palo_alto

CVE.org (CNA)Oct 15, 2026, 1:11 AM UTC
CISA ADPOct 15, 2026, 1:11 AM UTC
NVDOct 15, 2026, 1:11 AM UTC
FIRST EPSSOct 24, 2026, 12:00 AM UTC
MetasploitOct 25, 2026, 3:18 AM UTC
PoC-in-GitHubOct 25, 2026, 3:18 AM UTC

Each line is when that source was last processed for this record.

PAN-OS: Authentication Bypass with Cloud Authentication Service (CAS) enabled

Noroxi assessment

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Affected systems

Is your version affected?

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Affected versions

Versions reported by the vendor

Same product

Remediation

Which version to upgrade to

Exploit status

Research context

Timeline

Patch and commit links

Credits

Variant candidates

Chain candidates

Technical details

Attack conditions

If successful

Root cause

The bug in code

Attack context

Change log

References