CVE-2026-0280

HIGHCVSS 7.2/10EPSS 0.18%

Last modified

CVE-2026-0280 is a high-severity vulnerability rated 7.2/10 on the CVSS scale. An IPv6 packet processing vulnerability in the dataplane of Palo Alto Networks PAN-OS® software enables an unauthenticated attacker to bypass firewall security policy enforcement, allowing network traffic that should be blocked to reach protected services. Cloud NGFW and Panorama are not impacted by this vulnerability.. EPSS estimates a 0.18% chance of exploitation in the next 30 days.

Description

An IPv6 packet processing vulnerability in the dataplane of Palo Alto Networks PAN-OS® software enables an unauthenticated attacker to bypass firewall security policy enforcement, allowing network traffic that should be blocked to reach protected services. Cloud NGFW and Panorama are not impacted by this vulnerability.

Metrics

CVSS 3.1
7.2/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

CVSS 4.0
1.7/10

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/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:X/V:D/RE:M/U:Amber

EPSS Probability
0.18%

7.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersionsUpdate
PaloaltonetworksPan-Os>= 10.2.0, < 10.2.7
PaloaltonetworksPan-Os>= 10.2.8, < 10.2.10
PaloaltonetworksPan-Os>= 10.2.11, < 10.2.13
PaloaltonetworksPan-Os>= 10.2.14, < 10.2.16
PaloaltonetworksPan-Os10.2.7
PaloaltonetworksPan-Os10.2.10
PaloaltonetworksPan-Os10.2.13
PaloaltonetworksPan-Os10.2.16
PaloaltonetworksPan-Os10.2.17
PaloaltonetworksPan-Os10.2.18H1
PaloaltonetworksPan-Os>= 11.1.0, < 11.1.4
PaloaltonetworksPan-Os>= 11.1.8, < 11.1.10
PaloaltonetworksPan-Os>= 11.1.11, < 11.1.13
PaloaltonetworksPan-Os>= 11.1.14, < 11.1.16
PaloaltonetworksPan-Os11.1.4
PaloaltonetworksPan-Os11.1.5
PaloaltonetworksPan-Os11.1.6
PaloaltonetworksPan-Os11.1.10
PaloaltonetworksPan-Os11.1.13
PaloaltonetworksPan-Os>= 11.2.0, < 11.2.4
PaloaltonetworksPan-Os>= 11.2.5, < 11.2.7
PaloaltonetworksPan-Os>= 11.2.8, < 11.2.10
PaloaltonetworksPan-Os>= 11.2.11, < 11.2.13
PaloaltonetworksPan-Os11.2.4
PaloaltonetworksPan-Os11.2.7
PaloaltonetworksPan-Os11.2.10
PaloaltonetworksPan-Os>= 12.1.2, < 12.1.4
PaloaltonetworksPan-Os>= 12.1.5, < 12.1.7
PaloaltonetworksPan-Os12.1.4
PaloaltonetworksPan-Os12.1.7

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2026-0280?
An IPv6 packet processing vulnerability in the dataplane of Palo Alto Networks PAN-OS® software enables an unauthenticated attacker to bypass firewall security policy enforcement, allowing network traffic that should be blocked to reach protected services. Cloud NGFW and Panorama are not impacted by this vulnerability.
How severe is CVE-2026-0280?
CVE-2026-0280 has a CVSS score of 7.2/10 (HIGH severity). The EPSS model estimates a 0.18% probability of exploitation in the next 30 days.
How do I fix CVE-2026-0280?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST