Vulnerability · CVE-2026-0227
A vulnerability in Palo Alto Networks PAN-OS software enables an unauthenticated attacker to cause a denial of service (DoS) to the firewall.
Published Jan 15, 2026 · catalog updated Jan 30, 2026 · Palo Alto Networks Prisma Access
Last checked Oct 30, 2026. A connected source was read within the last 7 days.
Check if you run it
No confirmed exploitation is on record for CVE-2026-0227. EPSS is 0.74%. Act only if a listed version of Palo Alto Networks Prisma Access is installed.
Gaps on this record
- No vendor fix or required action is stored. Compare the linked advisory before you change production.
Same product and reporting
- CVE-2025-4619 · Medium
- CVE-2025-0133 · Low
- Severity
- Medium6.6
- Known exploitation
- Not in CISA/VulnCheck KEV
- EPSS
- 0.74%
- Remediation
- Version ranges on file
- Affected products
- vendor Palo Alto Networks Prisma Access 10.2 <10.2.10-h29, 10.2.4-h43
A 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.
Are you affected?
Enter the version you run. The result uses only the ranges stored on this record.
The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.
- vendor Palo Alto Networks Prisma Access 10.2 <10.2.10-h29, 10.2.4-h4310.2 <10.2.10-h29, 10.2.4-h43
How to fix CVE-2026-0227
Upgrade
CVE-2026-0227 lists a fix boundary at 10.2.10-h29. Compare the installed build with that boundary before you change production.
Version check
Seen in 10.2 <10.2.10-h29 · 1 other packages on the advisory
Advisory
Open the cve_org record and follow its fix.
Official advisories
What to do
Three questions, each answered from this record only. Confirm the vendor advisory before you patch.
Should you patch?
No confirmed exploitation is on record for CVE-2026-0227. EPSS is 0.74%. Act only if a listed version of Palo Alto Networks Prisma Access is installed.
Which versions are affected?
Compare what you have installed with Palo Alto Networks Prisma Access 10.2 <10.2.10-h29, 10.2.4-h43 10.2 <10.2.10-h29, 10.2.4-h43. Compare the installed version with the linked vendor advisory before you change production.
What should an analyst verify?
No weakness class is stored. EPSS 0.74%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.
Technology hubs
Code
The project this record applies to. Exploit listings stay in References.
No public source repository is identified for this product.
Timeline
Detection, updates, and resolution for this record.
Jan 15, 2026 · EUVD
Detected
A 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.
Jan 30, 2026 · EUVD
Updated
A 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.
Sources
- CVE.orgVulnerability recordCVE-2026-0227
Official CVE identifier
cve.org - FIRST EPSSExploitation probabilityCVE-2026-0227
30-day exploitation probability 0.74%
first.org - EUVDVulnerability recordEUVD-2026-2715
A 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.
euvd.enisa.europa.eu
References
Freshness
Last verified in this catalog Oct 30, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.
- CVE.orgOct 30, 2026
- FIRST EPSSOct 30, 2026
- EUVDOct 30, 2026