---
title: "CVE-2016-10034\n    | Ubuntu"
description: Ubuntu is an open source software operating system that runs from the
  desktop, to the cloud, to all your internet connected things.
url: https://ubuntu.com/security/CVE-2016-10034?format=md
keywords: index, follow
---

# CVE-2016-10034

Publication date 30 December 2016

Last updated 25 August 2025

---

Ubuntu priority

**Medium**

[Why this priority?](https://ubuntu.com/security/cves/about#priority )

## Cvss 3 Severity Score

**9.8 · Critical**

[Score breakdown](https://ubuntu.com/security/CVE-2016-10034?format=md#impact-score)

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## Description

The setFrom function in the Sendmail adapter in the zend-mail component
before 2.4.11, 2.5.x, 2.6.x, and 2.7.x before 2.7.2, and Zend Framework
before 2.4.11 might allow remote attackers to pass extra parameters to the
mail command and consequently execute arbitrary code via a \" (backslash
double quote) in a crafted e-mail address.

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| libphp-phpmailer | 16.10 yakkety | Not affected |
| 16.04 LTS xenial | Not affected |
| 14.04 LTS trusty | Not in release |
| 12.04 LTS precise | Not affected |

---

* [How can I get the fixes?](https://ubuntu.com/security/cves/about#security)
* [What do statuses mean?](https://ubuntu.com/security/cves/about#statuses)

## Severity score breakdown

CVSS version:
CVSS v3.0

**Base score**

9.8 · Critical

* Base metrics

  | Parameter | Value |
  | --- | --- |
  | Attack vector | Network |
  | Attack complexity | Low |
  | Privileges required | None |
  | User interaction | None |
  | Scope | Unchanged |
  | Confidentiality impact | High |
  | Integrity impact | High |
  | Availability impact | High |
* Scores

  | Parameter | Value |
  | --- | --- |
  | Base score | 9.8 · Critical |
  | Exploitability score | - |
  | Impact score | - |

**Vector:** CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-10034)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2016-10034)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2016-10034)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2016-10034)

### Other references

* <https://framework.zend.com/security/advisory/ZF2016-04>
* <https://legalhackers.com/advisories/ZendFramework-Exploit-ZendMail-Remote-Code-Exec-CVE-2016-10034-Vuln.html>
* <https://www.cve.org/CVERecord?id=CVE-2016-10034>