# CVE-2010-0840: Oracle JRE Unspecified

> Remote attackers can execute arbitrary code by exploiting improper checks in privileged methods within the Java Runtime Environment.

- **Severity:** Critical 9.8 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Yes, since 25 May 2022 (CISA KEV)
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 1 Apr 2010
- **Updated:** 22 Oct 2025
- **Also known as:** GHSA-8rrv-3xx7-wmfc

## What is CVE-2010-0840?

CVE-2010-0840 is a critical vulnerability in Canonical Ubuntu Linux, published on 1 Apr 2010. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Unspecified vulnerability in the Java Runtime Environment component in Oracle Java SE and Java for Business 6 Update 18, 5.0 Update 23, and 1.4.2_25 allows remote attackers to affect confidentiality, integrity, and availability via unknown vectors.  NOTE: the previous information was obtained from the March 2010 CPU.  Oracle has not commented on claims from a reliable researcher that this is related to improper checks when executing privileged methods in the Java Runtime Environment (JRE), which allows attackers to execute arbitrary code via (1) an untrusted object that extends the trusted class but has not modified a certain method, or (2) "a similar trust issue with interfaces," aka "Trusted Methods Chaining Remote Code Execution Vulnerability."

## Which versions are affected by CVE-2010-0840?

It affects 3 products.


Products: Canonical Ubuntu Linux, Opensuse Opensuse, Oracle Jre.

## How do I fix CVE-2010-0840?

Apply the vendor's patch. US federal agencies must fix it by 15 Jun 2022.

## Is CVE-2010-0840 being exploited?

Yes. Attackers have exploited CVE-2010-0840 in the wild since at least 25 May 2022.

Public exploit code:

- Java Statement.invoke() Trusted Method Chain Privilege Escalation (metasploit)
- Java - 'Statement.invoke()' Trusted Method Chain (Metasploit) (exploitdb)

## Other vulnerabilities in Canonical Ubuntu Linux

- [CVE-2020-11651](https://insights.sbomify.com/CVE-2020-11651/): SaltStack Salt Authentication Bypass (critical 9.8, exploited in the wild)
- [CVE-2020-7247](https://insights.sbomify.com/CVE-2020-7247/): OpenSMTPD Remote Code Execution (critical 9.8, exploited in the wild)
- [CVE-2019-16928](https://insights.sbomify.com/CVE-2019-16928/): Exim Out-of-bounds Write (critical 9.8, exploited in the wild)
- [CVE-2018-6789](https://insights.sbomify.com/CVE-2018-6789/): Exim Buffer Overflow (critical 9.8, exploited in the wild)
- [CVE-2015-2590](https://insights.sbomify.com/CVE-2015-2590/): Oracle Java SE and Java SE Embedded Remote Code Execution (critical 9.8, exploited in the wild)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2010-0840 and fix it if it is affected.

What it is: CVE-2010-0840 is a critical vulnerability in Canonical Ubuntu Linux, published on 1 Apr 2010. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: Yes. Attackers have exploited CVE-2010-0840 in the wild since at least 25 May 2022.

Affected product: Canonical Ubuntu Linux. 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-2010-0840/ (Markdown: https://insights.sbomify.com/CVE-2010-0840/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2010-0840
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2010-0840
- OSV: https://osv.dev/vulnerability/CVE-2010-0840

---
From sbomify Insights: https://insights.sbomify.com/CVE-2010-0840/
Summaries are generated and may contain mistakes; the official description above is the record.