---
title: "CVE-2016-4802\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-2016-4802?format=md
keywords: index, follow
---

# CVE-2016-4802

Publication date 24 June 2016

Last updated 25 August 2025

---

Ubuntu priority

**Medium**

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

## Cvss 3 Severity Score

**7.8 · High**

[Score breakdown](https://ubuntu.com/security/CVE-2016-4802?format=md#impact-score)

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## Description

Multiple untrusted search path vulnerabilities in cURL and libcurl before
7.49.1, when built with SSPI or telnet is enabled, allow local users to
execute arbitrary code and conduct DLL hijacking attacks via a Trojan horse
(1) security.dll, (2) secur32.dll, or (3) ws2\_32.dll in the application or
current working directory.

[Read the notes from the security team](https://ubuntu.com/security/CVE-2016-4802?format=md#notes)

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| curl | 16.04 LTS xenial | Not affected |
| 15.10 wily | Not affected |
| 14.04 LTS trusty | Not affected |
| 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)

## Notes

---

### [mdeslaur](https://launchpad.net/~mdeslaur)

windows-specific

## Severity score breakdown

CVSS version:
CVSS v3.0

**Base score**

7.8 · High

* Base metrics

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

  | Parameter | Value |
  | --- | --- |
  | Base score | 7.8 · High |
  | Exploitability score | - |
  | Impact score | - |

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

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-4802)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2016-4802)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2016-4802)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2016-4802)

### Other references

* <https://curl.haxx.se/docs/adv_20160530.html>
* <http://www.securitytracker.com/id/1036008>
* <https://www.cve.org/CVERecord?id=CVE-2016-4802>