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Vulnerability record · CVE-2013-6685 · published 13 November 2013

CVE-2013-6685: Cisco unified ip phone firmware permissions and access controls vulnerability

Cisco · Unified Ip Phone Firmware

The firmware on Cisco Unified IP phones 8961, 9951, and 9971 uses weak permissions for memory block devices, which allows local users to gain privileges by mounting a device with a setuid file in its filesystem, aka Bug ID CSCui04382.

6.6 CVSS 2.0 Medium EPSS 0.28% · top 81.3% CWE-264 · Permissions and access controls
6.6CVSS 2.0 base score
0.28%EPSS exploitation probability, 30 days
NoNot in CISA KEV
4Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

The firmware on Cisco Unified IP phones 8961, 9951, and 9971 uses weak permissions for memory block devices, which allows local users to gain privileges by mounting a device with a setuid file in its filesystem, aka Bug ID CSCui04382.

AV:L/AC:M/Au:S/C:C/I:C/A:C

Affected products

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

References

LinkTags
http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2013-6685 Vendor Advisory
http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2013-6685 Vendor Advisory

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Related vulnerabilities

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

7.8CVE-2013-3468Cisco unified ip phone 8945 improper input validation vulnerabilityThe Cisco Unified IP Phone 8945 with software 9.3(2) allows remote attackers to cause a denial of service (device hang) via a malformed PNG file, aka…EPSS 3.2%7.5CVE-2018-0332Cisco unified ip phone firmware vulnerabilityA vulnerability in the Session Initiation Protocol (SIP) ingress packet processing of Cisco Unified IP Phone software could allow an unauthenticated,…EPSS 3.4%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%6.0CVE-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%5.4CVE-2014-0658Cisco unified ip phones 9900 series firmware improper input validation vulnerabilityCisco 9900 Unified IP phones allow remote attackers to cause a denial of service (unregistration) via a crafted SIP header, aka Bug ID CSCul24898.EPSS 2.7%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%4.6CVE-2012-1328Cisco unified ip phone code injection vulnerabilityCisco Unified IP Phones 9900 series devices with firmware 9.1 and 9.2 do not properly handle downloads of configuration information to an RT phone, w…EPSS 0.41%

Source: NIST National Vulnerability Database (record CVE-2013-6685), CISA KEV, FIRST EPSS (scores of 2026-09-28). This page is refreshed as NVD updates the record.