# CVE-2010-4254: Code injection in n/a

> Remote attackers can bypass generic constraints and potentially execute arbitrary code via crafted method calls in the Mono runtime.

- **Severity:** High 7.5 (`AV:N/AC:L/Au:N/C:P/I:P/A:P`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 3 Dec 2010
- **Updated:** 7 Aug 2024
- **Also known as:** GHSA-2fxv-5465-p76g

## What is CVE-2010-4254?

CVE-2010-4254 is a high-severity code injection vulnerability in n/a, published on 3 Dec 2010. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Mono, when Moonlight before 2.3.0.1 or 2.99.x before 2.99.0.10 is used, does not properly validate arguments to generic methods, which allows remote attackers to bypass generic constraints, and possibly execute arbitrary code, via a crafted method call.

Weakness: CWE-20 (Improper Input Validation)

## Which versions are affected by CVE-2010-4254?

It affects 2 products.


Products: Mono Mono, Novell Moonlight.

## How do I fix CVE-2010-4254?

No fix has been published for CVE-2010-4254 yet. Limit exposure of the affected software until one is available.

## Is CVE-2010-4254 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2010-4254 exists.

Public exploit code:

- Mono/Moonlight Generic Type Argument - Privilege Escalation (exploitdb)

## Other vulnerabilities in n/a

- [CVE-2007-5197](https://insights.sbomify.com/CVE-2007-5197/): Memory corruption in n/a (high 7.5)
- [CVE-2010-4159](https://insights.sbomify.com/CVE-2010-4159/): Path traversal in n/a (medium 6.9)
- [CVE-2011-0991](https://insights.sbomify.com/CVE-2011-0991/): Use after free in n/a (medium 6.8)
- [CVE-2006-5072](https://insights.sbomify.com/CVE-2006-5072/): Path traversal in n/a (medium 6.2)
- [CVE-2011-0989](https://insights.sbomify.com/CVE-2011-0989/): Memory corruption in n/a (medium 5.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2010-4254 and fix it if it is affected.

What it is: CVE-2010-4254 is a high-severity code injection vulnerability in n/a, published on 3 Dec 2010. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2010-4254 exists.

Affected product: n/a. 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-2010-4254/ (Markdown: https://insights.sbomify.com/CVE-2010-4254/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2010-4254
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2010-4254
- OSV: https://osv.dev/vulnerability/CVE-2010-4254

---
From sbomify Insights: https://insights.sbomify.com/CVE-2010-4254/
Summaries are generated and may contain mistakes; the official description above is the record.