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Vulnerability record · CVE-2006-0189 · published 13 January 2006

CVE-2006-0189: Estara softphone vulnerability

Estara · Softphone

Buffer overflow in eStara Softphone 3.0.1.14 through 3.0.1.46 allows remote attackers to execute arbitrary code via a long attribute (aka "a") field in the SDP data of a SIP packet on UDP port 5060.

7.5 CVSS 2.0 High EPSS 16% · top 3.2%
7.5CVSS 2.0 base score
16%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
14References, 2 tagged exploit
16 Jun 2026Last modified by NVD

Description

Buffer overflow in eStara Softphone 3.0.1.14 through 3.0.1.46 allows remote attackers to execute arbitrary code via a long attribute (aka "a") field in the SDP data of a SIP packet on UDP port 5060.

AV:N/AC:L/Au:N/C:P/I:P/A:P

Affected products

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

References

LinkTags
http://secunia.com/advisories/18410
http://securitytracker.com/id?1015481
http://www.osvdb.org/22348
http://www.securityfocus.com/archive/1/421596/100/0/threaded
http://www.securityfocus.com/bid/16213 Exploit
http://www.vupen.com/english/advisories/2006/0167
https://exchange.xforce.ibmcloud.com/vulnerabilities/24090
http://secunia.com/advisories/18410
http://securitytracker.com/id?1015481
http://www.osvdb.org/22348
http://www.securityfocus.com/archive/1/421596/100/0/threaded
http://www.securityfocus.com/bid/16213 Exploit
http://www.vupen.com/english/advisories/2006/0167
https://exchange.xforce.ibmcloud.com/vulnerabilities/24090

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Related vulnerabilities

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

5.0CVE-2006-0737Estara softphone vulnerabilityeStara SIP softphone allows remote attackers to cause a denial of service (crash) via a SIP OPTIONS request with a negative Expires field.EPSS 3.1%5.0CVE-2006-0738Estara softphone vulnerabilityMultiple format string vulnerabilities in eStara SIP softphone allow remote attackers to cause a denial of service (hang) via SIP INVITE requests wit…EPSS 3.1%5.0CVE-2006-0739Estara softphone vulnerabilityeStara SIP softphone allows remote attackers to cause a denial of service (crash) via an INVITE request with a Content-Length field that has more tha…EPSS 1.6%

Source: NIST National Vulnerability Database (record CVE-2006-0189), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.