# CVE-2015-0833: Path traversal in n/a

> Local attackers can gain privileges via DLL hijacking in Firefox updater when Maintenance Service is disabled.

- **Severity:** Medium 6.9 (`AV:L/AC:M/Au:N/C:C/I:C/A:C`)
- **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:** Yes
- **Published:** 25 Feb 2015
- **Updated:** 6 Aug 2024
- **Also known as:** GHSA-fpw9-4vjw-4573

## What is CVE-2015-0833?

CVE-2015-0833 is a medium-severity path traversal vulnerability in Mozilla Firefox, published on 25 Feb 2015. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Multiple untrusted search path vulnerabilities in updater.exe in Mozilla Firefox before 36.0, Firefox ESR 31.x before 31.5, and Thunderbird before 31.5 on Windows, when the Maintenance Service is not used, allow local users to gain privileges via a Trojan horse DLL in (1) the current working directory or (2) a temporary directory, as demonstrated by bcrypt.dll.

## Which versions are affected by CVE-2015-0833?

It affects 5 products.


Products: Mozilla Firefox, Mozilla Firefox Esr, Mozilla Thunderbird, Opensuse Evergreen, Opensuse Opensuse.

## How do I fix CVE-2015-0833?

Upgrade to a fixed version.

## Is CVE-2015-0833 being exploited?

There is no known exploitation of CVE-2015-0833 in the wild and no public exploit code.

## Other vulnerabilities in Mozilla Firefox

- [CVE-2019-11708](https://insights.sbomify.com/CVE-2019-11708/): Mozilla Firefox and Thunderbird Sandbox Escape (critical 10.0, exploited in the wild)
- [CVE-2010-3765](https://insights.sbomify.com/CVE-2010-3765/): Mozilla Multiple Products Remote Code Execution (critical 9.8, exploited in the wild)
- [CVE-2022-26486](https://insights.sbomify.com/CVE-2022-26486/): Mozilla Firefox Use-After-Free (critical 9.6, exploited in the wild)
- [CVE-2022-26485](https://insights.sbomify.com/CVE-2022-26485/): Mozilla Firefox Use-After-Free (high 8.8, exploited in the wild)
- [CVE-2019-11707](https://insights.sbomify.com/CVE-2019-11707/): Mozilla Firefox and Thunderbird Type Confusion (high 8.8, exploited in the wild)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2015-0833 and fix it if it is affected.

What it is: CVE-2015-0833 is a medium-severity path traversal vulnerability in Mozilla Firefox, published on 25 Feb 2015. 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-2015-0833 in the wild and no public exploit code.

Affected product: Mozilla Firefox. 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-2015-0833/ (Markdown: https://insights.sbomify.com/CVE-2015-0833/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2015-0833
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2015-0833
- OSV: https://osv.dev/vulnerability/CVE-2015-0833

---
From sbomify Insights: https://insights.sbomify.com/CVE-2015-0833/
Summaries are generated and may contain mistakes; the official description above is the record.