# CVE-2025-34352: JumpCloud Remote Assist < 0.317.0 Arbitrary File Write/Delete via Insecure Temp Directory

> Local attackers can escalate privileges to SYSTEM or cause denial of service via insecure temp directory handling in JumpCloud Remote Assist.

- **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:** 2 Dec 2025
- **Updated:** 2 Dec 2025
- **Also known as:** GHSA-qjc9-f8hg-mv2p

## What is CVE-2025-34352?

CVE-2025-34352 is a high-severity path traversal vulnerability in JumpCloud Inc. Remote Assist, published on 2 Dec 2025. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

JumpCloud Remote Assist for Windows versions prior to 0.317.0 include an uninstaller that is invoked by the JumpCloud Windows Agent as NT AUTHORITY\SYSTEM during agent uninstall or update operations. The Remote Assist uninstaller performs privileged create, write, execute, and delete actions on predictable files inside a user-writable %TEMP% subdirectory without validating that the directory is trusted or resetting its ACLs when it already exists. A local, low-privileged attacker can pre-create the directory with weak permissions and leverage mount-point or symbolic-link redirection to (a) coerce arbitrary file writes to protected locations, leading to denial of service (e.g., by overwriting sensitive system files), or (b) win a race to redirect DeleteFileW() to attacker-chosen targets, enabling arbitrary file or folder deletion and local privilege escalation to SYSTEM. This issue is fixed in JumpCloud Remote Assist 0.317.0 and affects Windows systems where Remote Assist is installed and managed through the Agent lifecycle.

Weakness: CWE-59 (Improper Link Resolution Before File Access), CWE-378 (Creation of Temporary File With Insecure Permissions)

## Which versions are affected by CVE-2025-34352?


## How do I fix CVE-2025-34352?

No fix has been published for CVE-2025-34352 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-34352 being exploited?

There is no known exploitation of CVE-2025-34352 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-34352 and fix it if it is affected.

What it is: CVE-2025-34352 is a high-severity path traversal vulnerability in JumpCloud Inc. Remote Assist, published on 2 Dec 2025. 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-2025-34352 in the wild and no public exploit code.

Affected product: JumpCloud Inc. Remote Assist. 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-2025-34352/ (Markdown: https://insights.sbomify.com/CVE-2025-34352/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-34352
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-34352
- OSV: https://osv.dev/vulnerability/CVE-2025-34352

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From sbomify Insights: https://insights.sbomify.com/CVE-2025-34352/
Summaries are generated and may contain mistakes; the official description above is the record.