# CVE-2010-0025: Information disclosure in n/a

> Remote attackers can read fragments of email messages by sending invalid SMTP commands followed by STARTTLS, affecting Microsoft Exchange and Windows SMTP services.

- **Severity:** Medium 5.0 (`AV:N/AC:L/Au:N/C:P/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 14 Apr 2010
- **Updated:** 7 Aug 2024
- **Also known as:** GHSA-hx33-6cv9-3m88

## What is CVE-2010-0025?

CVE-2010-0025 is a medium-severity vulnerability in Microsoft Exchange Server, published on 14 Apr 2010. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

The SMTP component in Microsoft Windows 2000 SP4, XP SP2 and SP3, Server 2003 SP2, and Server 2008 Gold, SP2, and R2, and Exchange Server 2000 SP3, does not properly allocate memory for SMTP command replies, which allows remote attackers to read fragments of e-mail messages by sending a series of invalid commands and then sending a STARTTLS command, aka "SMTP Memory Allocation Vulnerability."

Weakness: CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor)

## Which versions are affected by CVE-2010-0025?

It affects 6 products.


Products: Microsoft Exchange Server, Microsoft Windows 2000, Microsoft Windows 2003 Server, Microsoft Windows Server 2003, Microsoft Windows Server 2008, Microsoft Windows Xp.

## How do I fix CVE-2010-0025?

No fix has been published for CVE-2010-0025 yet. Limit exposure of the affected software until one is available.

## Is CVE-2010-0025 being exploited?

There is no known exploitation of CVE-2010-0025 in the wild and no public exploit code.

## Other vulnerabilities in Microsoft Exchange Server

- [CVE-2024-21410](https://insights.sbomify.com/CVE-2024-21410/): Microsoft Exchange Server Privilege Escalation (critical 9.8, exploited in the wild)
- [CVE-2021-34473](https://insights.sbomify.com/CVE-2021-34473/): Microsoft Exchange Server Remote Code Execution (critical 9.1, exploited in the wild)
- [CVE-2021-26855](https://insights.sbomify.com/CVE-2021-26855/): Microsoft Exchange Server Remote Code Execution (critical 9.1, exploited in the wild)
- [CVE-2021-34523](https://insights.sbomify.com/CVE-2021-34523/): Microsoft Exchange Server Privilege Escalation (critical 9.0, exploited in the wild)
- [CVE-2023-21529](https://insights.sbomify.com/CVE-2023-21529/): Microsoft Exchange Server Deserialization of Untrusted Data (high 8.8, exploited in the wild)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2010-0025 and fix it if it is affected.

What it is: CVE-2010-0025 is a medium-severity vulnerability in Microsoft Exchange Server, published on 14 Apr 2010. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2010-0025 in the wild and no public exploit code.

Affected product: Microsoft Exchange Server. 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-2010-0025/ (Markdown: https://insights.sbomify.com/CVE-2010-0025/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2010-0025
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2010-0025
- OSV: https://osv.dev/vulnerability/CVE-2010-0025

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From sbomify Insights: https://insights.sbomify.com/CVE-2010-0025/
Summaries are generated and may contain mistakes; the official description above is the record.