How severe is CVE-2016-6371?

CVE-2016-6371 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2016-6371 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (91st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-6371?

CVE-2016-6371 primarily affects Cisco Hosted Collaboration Mediation Fulfillment. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2016-6371?

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-2016-6371 published?

CVE-2016-6371 was published on 2016-09-12 and last updated on 2026-06-17.

CVE-2016-6371

CVE-2016-6371 is a high-severity vulnerability in Cisco Hosted Collaboration Mediation Fulfillment with a CVSS 3.x base score of 7.5. 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-22.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 5% (91st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-22
Affected product: Cisco Hosted Collaboration Mediation Fulfillment
Published: 2016-09-12
Last modified: 2026-06-17

Description

Directory traversal vulnerability in the web interface in Cisco Hosted Collaboration Mediation Fulfillment (HCM-F) 10.6(3) and earlier allows remote attackers to write to arbitrary files via a crafted URL, aka Bug ID CSCuz64717.

Frequently asked questions

What is CVE-2016-6371?: Directory traversal vulnerability in the web interface in Cisco Hosted Collaboration Mediation Fulfillment (HCM-F) 10.6(3) and earlier allows remote attackers to write to arbitrary files via a crafted URL, aka Bug ID CSCuz64717.
How severe is CVE-2016-6371?: CVE-2016-6371 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2016-6371 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (91st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-6371?: CVE-2016-6371 primarily affects Cisco Hosted Collaboration Mediation Fulfillment. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2016-6371?: 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-2016-6371 published?: CVE-2016-6371 was published on 2016-09-12 and last updated on 2026-06-17.

References

Affected products (3)

cpe:2.3:a:cisco:hosted_collaboration_mediation_fulfillment:10.6\(1\)_base:*:*:*:*:*:*:*
cpe:2.3:a:cisco:hosted_collaboration_mediation_fulfillment:10.6\(2\)_base:*:*:*:*:*:*:*
cpe:2.3:a:cisco:hosted_collaboration_mediation_fulfillment:10.6\(3\)_base:*:*:*:*:*:*:*

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