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CVE-2016-9400

32
FAUCET Score

CVE-2016-9400 is a critical vulnerability affecting Teeworlds before version 0.6.4, specifically within the CClient::ProcessServerPacket method. A remote server can exploit this flaw to write to arbitrary physical memory locations, potentially leading to arbitrary code execution. With a CVSS score of 9.8 (CRITICAL), this vulnerability is easily exploitable over the network with low attack complexity and no user interaction, allowing for complete compromise of confidentiality, integrity, and availability. While there are no known public exploits in Metasploit, Nuclei, or ExploitDB, the vulnerability has garnered significant community discussion, indicating awareness and potential for future exploitation.

Impacted Technologies

VendorProductVersion(s)CPE
< 0.6.4CPE matchmatch criteria
cpe:2.3:a:teeworlds:teeworlds:*:*:*:*:*:*:*:*
23CPE matchmatch criteria
cpe:2.3:o:fedoraproject:fedora:23:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
3.65%
Probability of exploitation in next 30 days
EPSS Percentile
88.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0365 is in the 81st percentile among its peer group of 36,829 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

References

github.com / teeworlds/teeworlds/commit/ff254722a2683867fcb3e67569ffd36226c4bc62
Issue TrackingPatchThird Party Advisory
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/C4JNSBXXPE7O32ZMFK7D7YL6EKLG7PRV
security.gentoo.org / glsa/201705-13
Third Party Advisory
teeworlds.com
Vendor Advisory
openwall.com / lists/oss-security/2016/11/16/8
Mailing ListPatchThird Party Advisory
openwall.com / lists/oss-security/2016/11/17/8
Mailing ListPatchThird Party Advisory
securityfocus.com / bid/94381
Third Party AdvisoryVDB Entry