CVE-2016-9400

Name: CVE-2016-9400
Creator: NVD / NIST
Published: 2017-02-22T16:59:00.347+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 3.65%

Last modified Jun 17, 2026

CVE-2016-9400 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. The CClient::ProcessServerPacket method in engine/client/client.cpp in Teeworlds before 0.6.4 allows remote servers to write to arbitrary physical memory locations and possibly execute arbitrary code via vectors involving snap handling.. EPSS estimates a 3.65% chance of exploitation in the next 30 days.

Description

The CClient::ProcessServerPacket method in engine/client/client.cpp in Teeworlds before 0.6.4 allows remote servers to write to arbitrary physical memory locations and possibly execute arbitrary code via vectors involving snap handling.

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

3.65%

88.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-119

Affected Software

Vendor	Product	Versions
Teeworlds	Teeworlds	< 0.6.4
Fedoraproject	Fedora	23

References

http://www.openwall.com/lists/oss-security/2016/11/16/8Mailing List, Patch, Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/11/17/8Mailing List, Patch, Third Party Advisory
http://www.securityfocus.com/bid/94381Third Party Advisory, VDB Entry
https://github.com/teeworlds/teeworlds/commit/ff254722a2683867fcb3e67569ffd36226c4bc62Issue Tracking, Patch, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/C4JNSBXXPE7O32ZMFK7D7YL6EKLG7PRV/
https://security.gentoo.org/glsa/201705-13Third Party Advisory
https://www.teeworlds.com/?page=news&id=12086Vendor Advisory
http://www.openwall.com/lists/oss-security/2016/11/16/8Mailing List, Patch, Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/11/17/8Mailing List, Patch, Third Party Advisory
http://www.securityfocus.com/bid/94381Third Party Advisory, VDB Entry
https://github.com/teeworlds/teeworlds/commit/ff254722a2683867fcb3e67569ffd36226c4bc62Issue Tracking, Patch, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/C4JNSBXXPE7O32ZMFK7D7YL6EKLG7PRV/
https://security.gentoo.org/glsa/201705-13Third Party Advisory
https://www.teeworlds.com/?page=news&id=12086Vendor Advisory

Timeline

Published: Feb 22, 2017
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2016-9400?

How severe is CVE-2016-9400?

CVE-2016-9400 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 3.65% probability of exploitation in the next 30 days.

How do I fix CVE-2016-9400?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2016-9400?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST