How severe is CVE-2016-1403?

CVE-2016-1403 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2016-1403 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (40th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-1403?

CVE-2016-1403 primarily affects Cisco Ip Phone 8800 Series Firmware. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2016-1403?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2016-1403 published?

CVE-2016-1403 was published on 2016-06-04 and last updated on 2026-06-17.

CVE-2016-1403

CVE-2016-1403 is a high-severity vulnerability in Cisco Ip Phone 8800 Series Firmware with a CVSS 3.x base score of 7.8. 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: High (CVSS 3.x base score 7.8)
CVSS v2: 7.2
EPSS exploit prediction: 1% (40th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Cisco Ip Phone 8800 Series Firmware
Published: 2016-06-04
Last modified: 2026-06-17

Description

CISCO IP 8800 phones with software 11.0.1 and earlier allow local users to gain privileges for OS command execution via crafted CLI commands, aka Bug ID CSCuz03005.

Frequently asked questions

What is CVE-2016-1403?: CISCO IP 8800 phones with software 11.0.1 and earlier allow local users to gain privileges for OS command execution via crafted CLI commands, aka Bug ID CSCuz03005.
How severe is CVE-2016-1403?: CVE-2016-1403 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2016-1403 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (40th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-1403?: CVE-2016-1403 primarily affects Cisco Ip Phone 8800 Series Firmware. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2016-1403?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2016-1403 published?: CVE-2016-1403 was published on 2016-06-04 and last updated on 2026-06-17.

References

http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160603-ipp

Affected products (5)

cpe:2.3:o:cisco:ip_phone_8800_series_firmware:10.2\(1\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:ip_phone_8800_series_firmware:10.2\(2\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:ip_phone_8800_series_firmware:10.3:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ip_phone_8800_series_firmware:10.3\(2\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:ip_phone_8800_series_firmware:11.0\(1\):*:*:*:*:*:*:*

More vulnerabilities in Cisco Ip Phone 8800 Series Firmware

CVE-2016-1479 — High (CVSS 7.5): Cisco IP Phone 8800 devices with software 11.0(1) allow remote attackers to cause a denial of service (memory…
CVE-2016-1421 — High (CVSS 7.5): A vulnerability in the web application for Cisco IP Phones could allow an unauthenticated, remote attacker to execute…
CVE-2015-6360 — High (CVSS 7.5): The encryption-processing feature in Cisco libSRTP before 1.5.3 allows remote attackers to cause a denial of service…
CVE-2016-1435 — High (CVSS 7.0): Cisco 8800 phones with software 11.0(1) do not properly enforce mounted-filesystem permissions, which allows local…
CVE-2017-12305 — Medium (CVSS 6.7): A vulnerability in the debug interface of Cisco IP Phone 8800 series could allow an authenticated, local attacker to…
CVE-2018-0461 — Medium (CVSS 6.5): A vulnerability in the Cisco IP Phone 8800 Series Software could allow an unauthenticated, remote attacker to conduct…

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