CVE-2026-0269
Description
Authenticated users can cause PAN-OS firewalls to reboot by sending a crafted packet, potentially leading to maintenance mode.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Authenticated users can cause PAN-OS firewalls to reboot by sending a crafted packet, potentially leading to maintenance mode.
Vulnerability
A memory corruption vulnerability exists in the tunnel traffic processing component of Palo Alto Networks PAN-OS software. This issue affects PAN-OS firewalls configured with specific versions, including but not limited to 11.2.4 through 11.2.9, and 12.1.2 through 12.1.4 [1].
Exploitation
An authenticated user can exploit this vulnerability by sending a maliciously crafted packet that targets the tunnel traffic processing. Repeated attempts to trigger the vulnerability can cause the firewall to enter maintenance mode [1].
Impact
Successful exploitation allows an authenticated user to initiate system reboots. Repeated reboots can force the firewall into maintenance mode, resulting in a denial of service for network traffic passing through the device.
Mitigation
Palo Alto Networks has released fixed versions of PAN-OS. Specific affected versions include 11.2.4 through 11.2.9, and 12.1.2 through 12.1.4. No known workarounds exist for this issue [1].
AI Insight generated on Jun 10, 2026. Synthesized from this CVE's description and the cited reference URLs; citations are validated against the source bundle.
Affected products
1Patches
0No patches discovered yet.
Vulnerability mechanics
No source-code context for this CVE — mechanics is only generated when we can read the actual fix diff. Without that, the four sections (root cause, attack vector, affected code, fix) would be speculation rather than analysis.
References
1News mentions
0No linked articles in our index yet.