# CVE-2025-34109: Panda Security PSEvents.exe Insecure DLL Loading Privilege Escalation

> Low-privileged attackers can achieve SYSTEM code execution by placing malicious DLLs in a user-writable directory loaded by Panda Security services.

- **Severity:** High 8.5 (`CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 15 Jul 2025
- **Updated:** 15 May 2026
- **Also known as:** GHSA-rvpx-3mwh-gfp7

## What is CVE-2025-34109?

CVE-2025-34109 is a high-severity vulnerability in Panda Antivirus Pro 2016, published on 15 Jul 2025. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

PSEvents.exe in multiple Panda Security products runs hourly with SYSTEM privileges and loads DLL files from a user-writable directory without proper validation. An attacker with low-privileged access who can write DLL files to the monitored directory can achieve arbitrary code execution with SYSTEM privileges. Affected products include Panda Global Protection 2016, Panda Antivirus Pro 2016, Panda Small Business Protection, and Panda Internet Security 2016 (all versions up to 16.1.2).

Weakness: CWE-427 (Uncontrolled Search Path Element)

## Which versions are affected by CVE-2025-34109?


## How do I fix CVE-2025-34109?

No fix has been published for CVE-2025-34109 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-34109 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-34109 exists.

Public exploit code:

- Panda Security PSEvents Privilege Escalation (metasploit)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-34109 and fix it if it is affected.

What it is: CVE-2025-34109 is a high-severity vulnerability in Panda Antivirus Pro 2016, published on 15 Jul 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-34109 exists.

Affected product: Panda Antivirus Pro 2016. 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-2025-34109/ (Markdown: https://insights.sbomify.com/CVE-2025-34109/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-34109
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-34109
- OSV: https://osv.dev/vulnerability/CVE-2025-34109

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-34109/
Summaries are generated and may contain mistakes; the official description above is the record.