# CVE-2021-25251: Code injection in Trend Micro Security (Consumer)

> An attacker with administrator privileges can inject code to disable password protection and security features in Trend Micro Security.

- **Severity:** High 7.2 (`CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 10 Feb 2021
- **Updated:** 3 Aug 2024
- **Also known as:** GHSA-3pw2-j2vj-ghmp

## What is CVE-2021-25251?

CVE-2021-25251 is a high-severity code injection vulnerability in Trend Micro Security (Consumer), published on 10 Feb 2021. An attacker needs administrator access to exploit it, with no action from the victim.

### Official description

The Trend Micro Security 2020 and 2021 families of consumer products are vulnerable to a code injection vulnerability which could allow an attacker to disable the program's password protection and disable protection. An attacker must already have administrator privileges on the machine to exploit this vulnerability.

Weakness: CWE-94 (Improper Control of Generation of Code)

## Which versions are affected by CVE-2021-25251?

It affects 8 products.


Products: Trendmicro Antivirus\+ Security 2020, Trendmicro Antivirus\+ Security 2021, Trendmicro Internet Security 2020, Trendmicro Internet Security 2021, Trendmicro Maximum Security 2020, Trendmicro Maximum Security 2021, Trendmicro Premium Security 2020, Trendmicro Premium Security 2021.

## How do I fix CVE-2021-25251?

No fix has been published for CVE-2021-25251 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-25251 being exploited?

There is no known exploitation of CVE-2021-25251 in the wild and no public exploit code.

## Other vulnerabilities in Trend Micro Security (Consumer)

- [CVE-2019-18190](https://insights.sbomify.com/CVE-2019-18190/): Null dereference in Trend Micro Security (Consumer) (critical 9.8)
- [CVE-2020-27695](https://insights.sbomify.com/CVE-2020-27695/): Privilege escalation in Trend Micro Security (Consumer) (high 7.8)
- [CVE-2020-27696](https://insights.sbomify.com/CVE-2020-27696/): Privilege escalation in Trend Micro Security (Consumer) (high 7.8)
- [CVE-2020-27697](https://insights.sbomify.com/CVE-2020-27697/): Privilege escalation in Trend Micro Security (Consumer) (high 7.8)
- [CVE-2019-19693](https://insights.sbomify.com/CVE-2019-19693/): Path traversal in Trend Micro Security (Consumer) (high 7.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-25251 and fix it if it is affected.

What it is: CVE-2021-25251 is a high-severity code injection vulnerability in Trend Micro Security (Consumer), published on 10 Feb 2021. An attacker needs administrator access to exploit it, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2021-25251 in the wild and no public exploit code.

Affected product: Trend Micro Security (Consumer). 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-2021-25251/ (Markdown: https://insights.sbomify.com/CVE-2021-25251/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-25251
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-25251
- OSV: https://osv.dev/vulnerability/CVE-2021-25251

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-25251/
Summaries are generated and may contain mistakes; the official description above is the record.