How severe is CVE-2016-6377?

CVE-2016-6377 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2016-6377 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (66th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-6377?

CVE-2016-6377 primarily affects Cisco Media Origination System Suite. In total, 12 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2016-6377?

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-2016-6377 published?

CVE-2016-6377 was published on 2016-09-03 and last updated on 2026-06-17.

CVE-2016-6377

CVE-2016-6377 is a high-severity vulnerability in Cisco Media Origination System Suite with a CVSS 3.x base score of 8.1. 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-287.

Key facts

Severity: High (CVSS 3.x base score 8.1)
CVSS v2: 6.8
EPSS exploit prediction: 1% (66th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-287
Affected product: Cisco Media Origination System Suite
Published: 2016-09-03
Last modified: 2026-06-17

Description

Media Origination System Suite Software 2.6 and earlier in Cisco Virtual Media Packager (VMP) allows remote attackers to bypass authentication and make arbitrary Platform and Applications Manager (PAM) API calls via unspecified vectors, aka Bug ID CSCuz52110.

Frequently asked questions

What is CVE-2016-6377?: Media Origination System Suite Software 2.6 and earlier in Cisco Virtual Media Packager (VMP) allows remote attackers to bypass authentication and make arbitrary Platform and Applications Manager (PAM) API calls via unspecified vectors, aka Bug ID CSCuz52110.
How severe is CVE-2016-6377?: CVE-2016-6377 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2016-6377 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (66th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-6377?: CVE-2016-6377 primarily affects Cisco Media Origination System Suite. In total, 12 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2016-6377?: 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-2016-6377 published?: CVE-2016-6377 was published on 2016-09-03 and last updated on 2026-06-17.

References

Affected products (12)

cpe:2.3:a:cisco:media_origination_system_suite:2.3\(1\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:media_origination_system_suite:2.3\(2\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:media_origination_system_suite:2.3\(6\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:media_origination_system_suite:2.3\(7\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:media_origination_system_suite:2.3\(8\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:media_origination_system_suite:2.3_base:*:*:*:*:*:*:*
cpe:2.3:a:cisco:media_origination_system_suite:2.4\(1\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:media_origination_system_suite:2.4_base:*:*:*:*:*:*:*
cpe:2.3:a:cisco:media_origination_system_suite:2.5\(0\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:media_origination_system_suite:2.5\(1\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:media_origination_system_suite:2.5_base:*:*:*:*:*:*:*
cpe:2.3:a:cisco:media_origination_system_suite:2.6_base:*:*:*:*:*:*:*

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