Is CVE-2014-0658 being actively exploited?

CVE-2014-0658 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2014-0658?

CVE-2014-0658 has a CVSS 2.0 base score of 5.4 (MEDIUM).

CVE-2014-0658

MEDIUM · CVSS 5.4EPSS 2.7%EU EUVD

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

Key facts

CVSS score: 5.4 (v2.0)
Severity: MEDIUM
CVSS vector: AV:N/AC:H/Au:N/C:N/I:N/A:C
Weakness (CWE): CWE-20
EPSS score: 2.7% (86th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2014-0689)
Published: January 10, 2014
NVD last modified: June 17, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2014-0689 in the EU Vulnerability Database. Last updated in EUVD on August 6, 2024.

View on the EU Vulnerability Database

Affected products

cisco / unified ip phone 9951
cisco / unified ip phone 9971
cisco / unified ip phones 9900 series firmware

References

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 Advisory, VDB Entry)
http://www.securitytracker.com/id/1029596(Third Party Advisory, VDB Entry)
https://exchange.xforce.ibmcloud.com/vulnerabilities/90236

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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