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Vulnerability record · CVE-2014-0658 · published 10 January 2014

CVE-2014-0658: Cisco unified ip phones 9900 series firmware improper input validation vulnerability

Cisco · Unified Ip Phones 9900 Series Firmware

Cisco 9900 Unified IP phones allow remote attackers to cause a denial of service (unregistration) via a crafted SIP header, aka Bug ID CSCul24898.

5.4 CVSS 2.0 Medium EPSS 2.7% · top 14.9% CWE-20 · Improper input validation
5.4CVSS 2.0 base score
2.7%EPSS exploitation probability, 30 days
NoNot in CISA KEV
3Affected product versions listed by NVD
14References
17 Jun 2026Last modified by NVD

Description

Cisco 9900 Unified IP phones allow remote attackers to cause a denial of service (unregistration) via a crafted SIP header, aka Bug ID CSCul24898.

AV:N/AC:H/Au:N/C:N/I:N/A:C

Affected products

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

References

LinkTags
http://osvdb.org/101913
http://secunia.com/advisories/56384
http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2014-0658 Vendor Advisory
http://tools.cisco.com/security/center/viewAlert.x?alertId=32402 Vendor Advisory
http://www.securityfocus.com/bid/64770 Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1029596 Third Party AdvisoryVDB Entry
https://exchange.xforce.ibmcloud.com/vulnerabilities/90236
http://osvdb.org/101913
http://secunia.com/advisories/56384
http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2014-0658 Vendor Advisory
http://tools.cisco.com/security/center/viewAlert.x?alertId=32402 Vendor Advisory
http://www.securityfocus.com/bid/64770 Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1029596 Third Party AdvisoryVDB Entry
https://exchange.xforce.ibmcloud.com/vulnerabilities/90236

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Related vulnerabilities

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

7.1CVE-2015-4226Cisco unified ip phones 9900 series firmware vulnerabilityThe packet-storing feature on Cisco 9900 phones with firmware 9.3(2) does not properly support the RTP protocol, which allows remote attackers to cau…EPSS 2.8%7.1CVE-2013-5526Cisco unified ip phone 9951 improper input validation vulnerabilityCisco 9900 fourth-generation IP phones do not properly perform SDP negotiation, which allows remote attackers to cause a denial of service (device re…EPSS 1.8%6.6CVE-2013-6685Cisco unified ip phone firmware permissions and access controls vulnerabilityThe firmware on Cisco Unified IP phones 8961, 9951, and 9971 uses weak permissions for memory block devices, which allows local users to gain privile…EPSS 0.28%6.0CVE-2013-5533Cisco unified ip phones 9900 series firmware improper input validation vulnerabilityThe image-upgrade functionality on Cisco 9900 Unified IP phones allows local users to gain privileges by placing shell commands in an unspecified par…EPSS 0.27%5.0CVE-2015-0602Cisco unified ip phones 9900 series firmware information exposure vulnerabilityThe mobility extension on Cisco Unified IP 9900 phones with firmware 9.4(.1) and earlier allows remote attackers to obtain sensitive information by s…EPSS 1.4%5.0CVE-2015-0600Cisco unified ip phones 9900 series firmware improper input validation vulnerabilityThe mobility extension on Cisco Unified IP 9900 phones with firmware 9.4(.1) and earlier allows remote attackers to cause a denial of service (logoff…EPSS 2.2%5.0CVE-2013-5532Cisco unified ip phones 9900 series firmware improper input validation vulnerabilityBuffer overflow in the web-application interface on Cisco 9900 IP phones allows remote attackers to cause a denial of service (webapp interface outag…EPSS 2.1%5.0CVE-2013-3426Cisco unified ip phones 9900 series firmware permissions and access controls vulnerabilityThe Serviceability servlet on Cisco 9900 IP phones does not properly restrict paths, which allows remote attackers to read arbitrary files by specify…EPSS 1.2%

Source: NIST National Vulnerability Database (record CVE-2014-0658), CISA KEV, FIRST EPSS (scores of 2026-09-28). This page is refreshed as NVD updates the record.