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Vulnerability record · CVE-2014-7222 · published 8 January 2018

CVE-2014-7222: Teamspeak3 improper input validation vulnerability

Teamspeak · Teamspeak3

Buffer overflow in TeamSpeak Client 3.0.14 and earlier allows remote authenticated users to cause a denial of service (application crash) by connecting to a channel with a different client instance, and placing crafted data in the Chat/Server tab with two \\ (backslash) characters, a digit, a \ (backslash) character, and "z" in a series of nested img BBCODE tags.

6.5 CVSS 3.0 Medium EPSS 11% · top 4.3% CWE-20 · Improper input validation
6.5CVSS 3.0 base score, v2 4.0
11%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
10References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

Buffer overflow in TeamSpeak Client 3.0.14 and earlier allows remote authenticated users to cause a denial of service (application crash) by connecting to a channel with a different client instance, and placing crafted data in the Chat/Server tab with two \\ (backslash) characters, a digit, a \ (backslash) character, and "z" in a series of nested img BBCODE tags.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://packetstormsecurity.com/files/128571/TeamSpeak-Client-3.0.14-Buffer-Overflow.html ExploitThird Party AdvisoryVDB Entry
http://r4p3.net/forum/reverse-engineering/38/teamspeak-3-exploit-bb-code-freeze-crash-not-responding/905/ Broken Link
http://r4p3.net/public/ts3bbcodefreeze.txt Broken Link
http://www.securityfocus.com/bid/70219 Third Party AdvisoryVDB Entry
https://exchange.xforce.ibmcloud.com/vulnerabilities/96890 Third Party AdvisoryVDB Entry
http://packetstormsecurity.com/files/128571/TeamSpeak-Client-3.0.14-Buffer-Overflow.html ExploitThird Party AdvisoryVDB Entry
http://r4p3.net/forum/reverse-engineering/38/teamspeak-3-exploit-bb-code-freeze-crash-not-responding/905/ Broken Link
http://r4p3.net/public/ts3bbcodefreeze.txt Broken Link
http://www.securityfocus.com/bid/70219 Third Party AdvisoryVDB Entry
https://exchange.xforce.ibmcloud.com/vulnerabilities/96890 Third Party AdvisoryVDB Entry

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2014-7222), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.