CVE-2026-0227
PAN-OS: Firewall Denial of Service (DoS) in GlobalProtect Gateway and Portal
02 Description
PAN-OS: Firewall Denial of Service (DoS) in GlobalProtect Gateway and Portal
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.
- AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
- Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
- EPSS probability
- 0.73% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 54.2% of scored records. A rank, not a probability.
- NVD base score
- 6.6 (CVSS v4.0), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:4.0/AV:N/AC:L/AT:N/PR:N/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:Y/R:U/V:D/RE:M/U:Amber
- NVD analysis status
- Analyzed. NVD last modified this record on 2026-06-17.
- 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
- 2026-01-15 18:45Z9 MO AGO
- Last updated
- 2026-01-30 23:36Z9 MO AGO
- Reserved
- 2025-11-03
- Assigning CNA
- palo_alto
- Record state
- PUBLISHED
- Severity
- Medium (CVSS 6.6)
- CNA CVSS vector
- CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/AU:Y/R:U/V:D/RE:M/U:Amber
- Weaknesses
- CWE-754Improper Check for Unusual or Exceptional ConditionsClass
- Data version
- 5.2
- Document digest
- 71d0b128478c64bfcb71b22fa4e64edfc0324a5f7774c657337947b350605422
05 Affected products
06 References
- security.paloaltonetworks.comhttps://security.paloaltonetworks.com/CVE-2026-0227
07 Remediation
VERSION MINOR VERSION SUGGESTED SOLUTION Cloud NGFW All No action needed. PAN-OS 12.1 12.1.2 through 12.1.3 Upgrade to 12.1.4 or later. PAN-OS 11.2 11.2.8 through 11.2.10 Upgrade to 11.2.10-h2 or later. 11.2.5 through 11.2.7 Upgrade to 11.2.7-h8 or 11.2.10-h2 or later. 11.2.0 through 11.2.4 Upgrade to 11.2.4-h15 or 11.2.10-h2 or later. PAN-OS 11.1 11.1.11 through 11.1.12 Upgrade to 11.1.13 or later. 11.1.7 through 11.1.10 Upgrade to 11.1.10-h9 or 11.1.13 later. 11.1.5 through 11.1.6 Upgrade to 11.1.6-h23 or 11.1.13 or later. 11.1.0 through 11.1.4 Upgrade to 11.1.4-h27 or 11.1.13 or later. PAN-OS 10.2 10.2.17 through 10.2.18 Upgrade to 10.2.18-h1 or later. 10.2.14 through 10.2.16 Upgrade to 10.2.16-h6 or 10.2.18-h1 or later. 10.2.11 through 10.2.13 Upgrade to 10.2.13-h18 or 10.2.18-h1 or later. 10.2.8 through 10.2.10 Upgrade to 10.2.10-h30 or 10.2.18-h1 or later. 10.2.0 through 10.2.7 Upgrade to 10.2.7-h32 or 10.2.18-h1 or later. PAN-OS 10.1 10.1.0 through 10.1.14 Upgrade to 10.1.14-h20 or later. All older Upgrade to a supported fixed version. unsupported PAN-OS versions Prisma Access 11.2 11.2.0 through 11.2.7 Upgrade to 11.2.7-h8 or later.* Prisma Access 10.2 10.2.0 through 10.2.10 Upgrade to 10.2.10-h29 or later.* * See the note under Product Status for information regarding Prisma Access upgrades.