Pan OsOperating system · Paloaltonetworks
CVE-2026-0227
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedA vulnerability in Palo Alto Networks PAN-OS software enables an unauthenticated attacker to cause a denial of service (DoS) to the firewall. Repeated attempts to trigger this issue results in the firewall entering into maintenance mode.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · moderate confidenceThis is a denial of service vulnerability in Palo Alto Networks PAN-OS software that allows an unauthenticated attacker to repeatedly crash the firewall, forcing it into maintenance mode. The attack requires no authentication and targets firewall availability.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data
Pan OsOperating system
>= 10.1.0, < 10.1.14>= 10.2.0, < 10.2.7>= 10.2.8, < 10.2.10>= 10.2.11, < 10.2.13>= 10.2.14, < 10.2.16>= 11.1.0, < 11.1.4>= 11.1.5, < 11.1.6>= 11.1.7, < 11.1.10>= 11.1.11, < 11.1.13>= 11.2.0, < 11.2.4>= 11.2.5, < 11.2.7>= 11.2.8, < 11.2.10
Prisma AccessApplication
all versionsCVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Identify the PAN-OS versionRun the command 'show system info' or access the web UI under Device > Setup > Operations > General and locate the 'PAN-OS' or 'Software Version' fieldAffected if The installed version falls within any of these ranges: 10.1.0 to <10.1.14, 10.2.0 to <10.2.7, 10.2.8 to <10.2.10, 10.2.11 to <10.2.13, 10.2.14 to <10.2.16, 11.1.0 to <11.1.4, 11.1.5 to <11.1.6, 11.1.7 to <11.1.10, 11.1.11 to <11.1.13, 11.2.0 to <11.2.4, 11.2.5 to <11.2.7, or 11.2.8 to <11.2.10
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Determine if Prisma Access is deployedCheck if the environment uses Prisma Access for remote access or SaaS security by reviewing the product licensing or checking the management console for Prisma Access-specific modulesAffected if Prisma Access is deployed regardless of version (all versions are affected)
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Verify management interface network exposureReview firewall network settings to confirm whether the management interface (PAN-OS web UI or API) is accessible from untrusted networks by checking the 'Management Interface Settings' under Network > Interfaces > Management or by reviewing firewall ACLs and NAT rulesAffected if The PAN-OS management interface is reachable from the internet or untrusted networks without IP-based access restrictions
Your environment is affected if the PAN-OS version is within any of the vulnerable version ranges OR if Prisma Access is deployed, and the management interface is network-accessible to potential attackers.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
From vendor data10.1.1410.2.710.2.10
Apply the vendor-supplied patch for PAN-OS when available; implement network-level access controls to limit attack surface to trusted sources until patch can be deployed.
Fix this in Pan Os
Scoped from the published advisory
- Consultation3.0 h
- Implementation4.0 h
- Testing3.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $3,408.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-0227 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2026-0227 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Version or environment caveats, and links to real fixes
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