How severe is CVE-2016-6446?

CVE-2016-6446 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 high, integrity none, and availability none.

Is CVE-2016-6446 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (69th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-6446?

CVE-2016-6446 primarily affects Cisco Meeting Server. In total, 9 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2016-6446?

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-2016-6446 published?

CVE-2016-6446 was published on 2016-10-27 and last updated on 2026-06-17.

CVE-2016-6446

CVE-2016-6446 is a high-severity vulnerability in Cisco Meeting Server 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-200.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 1% (69th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-200
Affected product: Cisco Meeting Server
Published: 2016-10-27
Last modified: 2026-06-17

Description

A vulnerability in Web Bridge for Cisco Meeting Server could allow an unauthenticated, remote attacker to retrieve memory from a connected server. More Information: CSCvb03308. Known Affected Releases: 1.8, 1.9, 2.0.

Frequently asked questions

What is CVE-2016-6446?: A vulnerability in Web Bridge for Cisco Meeting Server could allow an unauthenticated, remote attacker to retrieve memory from a connected server. More Information: CSCvb03308. Known Affected Releases: 1.8, 1.9, 2.0.
How severe is CVE-2016-6446?: CVE-2016-6446 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 high, integrity none, and availability none.
Is CVE-2016-6446 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (69th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-6446?: CVE-2016-6446 primarily affects Cisco Meeting Server. In total, 9 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2016-6446?: 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-2016-6446 published?: CVE-2016-6446 was published on 2016-10-27 and last updated on 2026-06-17.

References

Affected products (9)

cpe:2.3:a:cisco:meeting_server:1.8.15:*:*:*:*:*:*:*
cpe:2.3:a:cisco:meeting_server:1.8_base:*:*:*:*:*:*:*
cpe:2.3:a:cisco:meeting_server:1.9.0:*:*:*:*:*:*:*
cpe:2.3:a:cisco:meeting_server:1.9.2:*:*:*:*:*:*:*
cpe:2.3:a:cisco:meeting_server:2.0.0:*:*:*:*:*:*:*
cpe:2.3:a:cisco:meeting_server:2.0.1:*:*:*:*:*:*:*
cpe:2.3:a:cisco:meeting_server:2.0.3:*:*:*:*:*:*:*
cpe:2.3:a:cisco:meeting_server:2.0.4:*:*:*:*:*:*:*
cpe:2.3:a:cisco:meeting_server:2.0.5:*:*:*:*:*:*:*

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