How severe is CVE-2014-0658?

CVE-2014-0658 has a CVSS 2.0 base score of 5.4, rated medium severity.

Is CVE-2014-0658 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2014-0658?

CVE-2014-0658 primarily affects Cisco Unified Ip Phones 9900 Series Firmware. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2014-0658?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2014-0658 published?

CVE-2014-0658 was published on 2014-01-10 and last updated on 2026-06-17.

CVE-2014-0658

CVE-2014-0658 is a medium-severity vulnerability in Cisco Unified Ip Phones 9900 Series Firmware with a CVSS 2.0 base score of 5.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-20.

Key facts

Severity: Medium (CVSS 2.0 base score 5.4)
EPSS exploit prediction: 3% (84th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Cisco Unified Ip Phones 9900 Series Firmware
Published: 2014-01-10
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2014-0658?: Cisco 9900 Unified IP phones allow remote attackers to cause a denial of service (unregistration) via a crafted SIP header, aka Bug ID CSCul24898.
How severe is CVE-2014-0658?: CVE-2014-0658 has a CVSS 2.0 base score of 5.4, rated medium severity.
Is CVE-2014-0658 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2014-0658?: CVE-2014-0658 primarily affects Cisco Unified Ip Phones 9900 Series Firmware. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2014-0658?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2014-0658 published?: CVE-2014-0658 was published on 2014-01-10 and last updated on 2026-06-17.

References

Affected products (3)

cpe:2.3:o:cisco:unified_ip_phones_9900_series_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:unified_ip_phone_9951:*:*:*:*:*:*:*:*
cpe:2.3:h:cisco:unified_ip_phone_9971:*:*:*:*:*:*:*:*

More vulnerabilities in Cisco Unified Ip Phones 9900 Series Firmware

CVE-2015-4226 — High (CVSS 7.1): The packet-storing feature on Cisco 9900 phones with firmware 9.3(2) does not properly support the RTP protocol, which…
CVE-2013-5533 — Medium (CVSS 6.0): The image-upgrade functionality on Cisco 9900 Unified IP phones allows local users to gain privileges by placing shell…
CVE-2015-0602 — Medium (CVSS 5.0): The mobility extension on Cisco Unified IP 9900 phones with firmware 9.4(.1) and earlier allows remote attackers to…
CVE-2015-0600 — Medium (CVSS 5.0): The mobility extension on Cisco Unified IP 9900 phones with firmware 9.4(.1) and earlier allows remote attackers to…
CVE-2013-5532 — Medium (CVSS 5.0): Buffer overflow in the web-application interface on Cisco 9900 IP phones allows remote attackers to cause a denial of…
CVE-2013-3426 — Medium (CVSS 5.0): The Serviceability servlet on Cisco 9900 IP phones does not properly restrict paths, which allows remote attackers to…

All CVEs affecting Cisco Unified Ip Phones 9900 Series Firmware →

Other CWE-20 (Improper Input Validation) vulnerabilities

CVE-2026-48316 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Improper Input Validation vulnerability that could…
CVE-2026-48281 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Improper Input Validation vulnerability that could…
CVE-2026-48277 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Improper Input Validation vulnerability that could…
CVE-2026-48055 — Critical (CVSS 10.0): Streambert is a cross-platform Electron Desktop App to stream and download any video media. In versions 2.4.0 and…
CVE-2026-34910 — Critical (CVSS 10.0): A malicious actor with access to the network could exploit an Improper Input Validation vulnerability found in UniFi OS…
CVE-2026-33587 — Critical (CVSS 10.0): Lack of user input sanitisation in Open Notebook v1.8.3 allows the application user to execute Python code (and…

Browse all CWE-20 (Improper Input Validation) vulnerabilities →