# CVE-2026-0297: GlobalProtect App: Buffer Overflow Vulnerability during UDP Tunnel Handshake

> A buffer overflow in the GlobalProtect app allows attackers to execute arbitrary code with elevated privileges via a man-in-the-middle attack or rogue gateway.

- **Severity:** Medium 5.2 (`CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/AU:N/R:U/V:D/RE:M/U:Amber`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 13 Aug 2026
- **Updated:** 13 Aug 2026
- **Also known as:** GHSA-pc3v-5r9c-7gm7

## What is CVE-2026-0297?

CVE-2026-0297 is a medium-severity memory corruption vulnerability in Palo Alto Networks GlobalProtect App, published on 13 Aug 2026. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

A buffer overflow vulnerability exists in the Palo Alto Networks GlobalProtect™ app that enables a man-in-the-middle (MitM) attacker or a rogue gateway to disrupt system processes and potentially execute arbitrary code with elevated privileges (SYSTEM privileges on Windows, and root privileges on macOS and Linux).

Weakness: CWE-787 (Out-of-bounds Write)

## Which versions are affected by CVE-2026-0297?

It affects 1 product.


Products: Paloaltonetworks Globalprotect.

## How do I fix CVE-2026-0297?

No fix has been published for CVE-2026-0297 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-0297 being exploited?

There is no known exploitation of CVE-2026-0297 in the wild and no public exploit code.

## Other vulnerabilities in Palo Alto Networks GlobalProtect App

- [CVE-2025-4232](https://insights.sbomify.com/CVE-2025-4232/): GlobalProtect: Authenticated Code Injection Through Wildcard on macOS (high 8.5)
- [CVE-2021-3057](https://insights.sbomify.com/CVE-2021-3057/): GlobalProtect App: Buffer Overflow Vulnerability When Connecting to Portal or Gateway (high 8.1)
- [CVE-2023-0009](https://insights.sbomify.com/CVE-2023-0009/): GlobalProtect App: Local Privilege Escalation (PE) Vulnerability (high 7.8)
- [CVE-2022-0016](https://insights.sbomify.com/CVE-2022-0016/): GlobalProtect App: Privilege Escalation Vulnerability When Using Connect Before Logon (high 7.4)
- [CVE-2025-0120](https://insights.sbomify.com/CVE-2025-0120/): GlobalProtect App: Local Privilege Escalation (PE) Vulnerability (high 7.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-0297 and fix it if it is affected.

What it is: CVE-2026-0297 is a medium-severity memory corruption vulnerability in Palo Alto Networks GlobalProtect App, published on 13 Aug 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-0297 in the wild and no public exploit code.

Affected product: Palo Alto Networks GlobalProtect App. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-0297/ (Markdown: https://insights.sbomify.com/CVE-2026-0297/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-0297
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-0297
- OSV: https://osv.dev/vulnerability/CVE-2026-0297

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From sbomify Insights: https://insights.sbomify.com/CVE-2026-0297/
Summaries are generated and may contain mistakes; the official description above is the record.