Medium severity · published Jun 10, 2026
CVE-2026-0269
PAN-OS: Denial of Service (DoS) in Tunnel Traffic Processing
5.7
CVSS
0.2%
EPSS
No
On KEV
Description
A memory corruption vulnerability in the processing of tunnel traffic in Palo Alto Networks PAN-OS® software allows an authenticated user to initiate system reboots using a maliciously crafted packet. Repeated attempts to initiate a reboot causes the firewall to enter maintenance mode.
Panorama, Cloud NGFW, and Prisma® Access are not impacted by this vulnerability.
CVSS vector
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack vector
Adjacent
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 13% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
PA
PAN-OS · Palo Alto Networks
12.1.0 before 12.1.5; 11.2.0 before 11.2.10; 11.1.0 before 11.1.6-h21; 10.2.0 before 10.2.16-h6 · source: vendor, NVD
RA
RUGGEDCOM APE1808 · Siemens
0 · source: CISA
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-0269
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-0269
Vendor Advisory
https://security.paloaltonetworks.com/CVE-2026-0269
cert-portal.siemens.com
https://cert-portal.siemens.com/productcert/html/ssa-967325.html
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