# Palo Alto PAN-OS GlobalProtect zero-day (CVE-2024-3400) · pwn.watch

> A command injection in the GlobalProtect feature of PAN-OS let unauthenticated attackers run code as root on Palo Alto firewalls (CVSS 10). Volexity caught an actor it tracks as UTA0218, assessed as likely state-backed, exploiting it as a zero-day, and Palo Alto's Unit 42 tracked the activity as Operation MidnightEclipse. Hotfixes shipped from mid-April 2024. Added to the CISA KEV catalog on 2024-04-12. CISA lists known use in ransomware campaigns.

Page: https://pwn.watch/i/palo-alto-pan-os-globalprotect-zero-day-cve-2024-3400 · generated 2026-10-22T22:00:08.805Z

## Status
- Severity: critical · status: closed · patch: patched
- Product: Palo Alto Networks PAN-OS
- Started: 2024-04-12 · closed: 2024-04-12
- CVEs: CVE-2024-3400
- Affected: PAN-OS 10.2, 11.0 and 11.1 with GlobalProtect (exact hotfix ranges in the Palo Alto advisory)
- Fixed in: Hotfix releases per the Palo Alto advisory, e.g. 10.2.9-h1, 11.0.4-h1, 11.1.2-h3

## Follow this incident
- RSS (one item per update): https://pwn.watch/i/palo-alto-pan-os-globalprotect-zero-day-cve-2024-3400/feed.xml
- JSON Feed: https://pwn.watch/i/palo-alto-pan-os-globalprotect-zero-day-cve-2024-3400/feed.json
- Full data (timeline, sources, posts, agentBrief): https://pwn.watch/i/palo-alto-pan-os-globalprotect-zero-day-cve-2024-3400.json
- This file: https://pwn.watch/i/palo-alto-pan-os-globalprotect-zero-day-cve-2024-3400/llms.txt

## Updates (newest first)
- 2024-04-12: CVE-2024-3400 published (https://nvd.nist.gov/vuln/detail/CVE-2024-3400)
- 2024-04-12: CISA added CVE-2024-3400 to the KEV catalog (federal deadline 2024-04-19) (https://www.cisa.gov/known-exploited-vulnerabilities-catalog)
- 2024-04-12: Palo Alto publishes the advisory; Volexity and Unit 42 publish exploitation details (https://security.paloaltonetworks.com/CVE-2024-3400)

## Fix brief
# Security brief: Palo Alto PAN-OS GlobalProtect zero-day (CVE-2024-3400)

Source: https://pwn.watch/i/palo-alto-pan-os-globalprotect-zero-day-cve-2024-3400 · status: closed (closed Apr 12, 2024) · severity: critical · updated Apr 12, 2024

## Patch status
**PATCHED: fixed releases exist. Upgrade to a fixed version.**

## What it is
A command injection in the GlobalProtect feature of PAN-OS let unauthenticated attackers run code as root on Palo Alto firewalls (CVSS 10). Volexity caught an actor it tracks as UTA0218, assessed as likely state-backed, exploiting it as a zero-day, and Palo Alto's Unit 42 tracked the activity as Operation MidnightEclipse. Hotfixes shipped from mid-April 2024. Added to the CISA KEV catalog on 2024-04-12. CISA lists known use in ransomware campaigns.

Severity detail: CVSS 10 (v3.1, CNA), actively exploited (CISA KEV); known ransomware use

- Product: Palo Alto Networks PAN-OS
- CVE / advisory ids: CVE-2024-3400

## Affected versions
- PAN-OS 10.2, 11.0 and 11.1 with GlobalProtect (exact hotfix ranges in the Palo Alto advisory)

## Check whether you're affected
No generic command applies (the product is a hosted service, appliance or desktop app). Check the installed version in its admin UI / About screen and compare with the versions above.

## Fix
Upgrade to one of these fixed versions (or later on the same branch):
- Hotfix releases per the Palo Alto advisory, e.g. 10.2.9-h1, 11.0.4-h1, 11.1.2-h3

After upgrading, re-run the checks above and redeploy/restart the affected services.

## Latest updates
- Apr 12, 2024: CVE-2024-3400 published
- Apr 12, 2024: CISA added CVE-2024-3400 to the KEV catalog (federal deadline 2024-04-19)
- Apr 12, 2024: Palo Alto publishes the advisory; Volexity and Unit 42 publish exploitation details

## Advisories
- [CVE-2024-3400 PAN-OS: arbitrary file creation leads to OS command injection in GlobalProtect](https://security.paloaltonetworks.com/CVE-2024-3400) (Palo Alto Networks)
- [NVD: CVE-2024-3400](https://nvd.nist.gov/vuln/detail/CVE-2024-3400) (NVD)
- [CISA Known Exploited Vulnerabilities Catalog](https://www.cisa.gov/known-exploited-vulnerabilities-catalog) (CISA)

## Write-ups & news
- [Zero-day exploitation of unauthenticated RCE in GlobalProtect (CVE-2024-3400)](https://www.volexity.com/blog/2024/04/12/zero-day-exploitation-of-unauthenticated-remote-code-execution-vulnerability-in-globalprotect-cve-2024-3400/)
- [Threat brief: Operation MidnightEclipse, post-exploitation activity related to CVE-2024-3400](https://unit42.paloaltonetworks.com/cve-2024-3400/)

## Caveats
Derived from the CISA KEV JSON feed (catalogVersion 2026.10.21); CVSS from the CVE record (cveawg.mitre.org). startedAt is the CVE publication date when it fell in 2024 before the KEV listing, else the KEV dateAdded; exploitation may have begun earlier. closedAt is the KEV listing date (a fix or mitigation was available then unless noted).

---
Machine-readable: https://pwn.watch/i/palo-alto-pan-os-globalprotect-zero-day-cve-2024-3400.json · all incidents: https://pwn.watch/incidents.json. Verify against the vendor advisory before changing production systems.