# CVE-2007-4607: Memory corruption in n/a

> Remote attackers can execute arbitrary code via a buffer overflow in the EasyMail SMTP ActiveX control, requiring user interaction to trigger the vulnerable method.

- **Severity:** Critical 9.3 (`AV:N/AC:M/Au:N/C:C/I:C/A:C`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 31 Aug 2007
- **Updated:** 7 Aug 2024
- **Also known as:** GHSA-rff5-g5w3-xp43

## What is CVE-2007-4607?

CVE-2007-4607 is a critical memory corruption vulnerability in n/a, published on 31 Aug 2007. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

Buffer overflow in the EasyMailSMTPObj ActiveX control in emsmtp.dll 6.0.1 in the Quiksoft EasyMail SMTP Object, as used in Postcast Server Pro 3.0.61 and other products, allows remote attackers to execute arbitrary code via a long argument to the SubmitToExpress method, a different vulnerability than CVE-2007-1029. NOTE: this may have been fixed in version 6.0.3.15.

Weakness: CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer)

## Which versions are affected by CVE-2007-4607?

It affects 2 products.


Products: Gate Comm Software Postcast Server Pro, Quicksoft Easymail Objects.

## How do I fix CVE-2007-4607?

No fix has been published for CVE-2007-4607 yet. Limit exposure of the affected software until one is available.

## Is CVE-2007-4607 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2007-4607 exists.

Public exploit code:

- Postcast Server Pro 3.0.61 / Quiksoft EasyMail - 'emsmtp.dll 6.0.1' Remote Buffer Overflow (exploitdb)
- Oracle Document Capture 10g ActiveX Control Buffer Overflow (metasploit)
- Oracle Document Capture 10g - ActiveX Control Buffer Overflow (Metasploit) (exploitdb)
- Make CVE-2007-4607 exploitable again! (github_poc): https://github.com/joeyrideout/CVE-2007-4607

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2007-4607 and fix it if it is affected.

What it is: CVE-2007-4607 is a critical memory corruption vulnerability in n/a, published on 31 Aug 2007. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2007-4607 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-2007-4607/ (Markdown: https://insights.sbomify.com/CVE-2007-4607/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2007-4607
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2007-4607
- OSV: https://osv.dev/vulnerability/CVE-2007-4607

---
From sbomify Insights: https://insights.sbomify.com/CVE-2007-4607/
Summaries are generated and may contain mistakes; the official description above is the record.