How severe is CVE-2016-6464?

CVE-2016-6464 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-2016-6464 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (86th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-6464?

CVE-2016-6464 primarily affects Cisco Unified Communications Manager Im And Presence Service. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2016-6464?

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-2016-6464 published?

CVE-2016-6464 was published on 2016-12-14 and last updated on 2026-06-17.

CVE-2016-6464

CVE-2016-6464 is a high-severity vulnerability in Cisco Unified Communications Manager Im And Presence Service 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: 3% (86th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-200
Affected product: Cisco Unified Communications Manager Im And Presence Service
Published: 2016-12-14
Last modified: 2026-06-17

Description

A vulnerability in the web management interface of the Cisco Unified Communications Manager IM and Presence Service could allow an unauthenticated, remote attacker to view information on web pages that should be restricted. More Information: CSCva49629. Known Affected Releases: 11.5(1). Known Fixed Releases: 11.5(1.12000.2) 12.0(0.98000.181).

Frequently asked questions

What is CVE-2016-6464?: A vulnerability in the web management interface of the Cisco Unified Communications Manager IM and Presence Service could allow an unauthenticated, remote attacker to view information on web pages that should be restricted. More Information: CSCva49629. Known Affected Releases: 11.5(1). Known Fixed Releases: 11.5(1.12000.2) 12.0(0.98000.181).
How severe is CVE-2016-6464?: CVE-2016-6464 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-2016-6464 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (86th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-6464?: CVE-2016-6464 primarily affects Cisco Unified Communications Manager Im And Presence Service. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2016-6464?: 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-2016-6464 published?: CVE-2016-6464 was published on 2016-12-14 and last updated on 2026-06-17.

References

Affected products (4)

cpe:2.3:a:cisco:unified_communications_manager_im_and_presence_service:10.5\(1\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:unified_communications_manager_im_and_presence_service:10.5\(2\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:unified_communications_manager_im_and_presence_service:11.0\(1\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:unified_communications_manager_im_and_presence_service:11.5\(1\):*:*:*:*:*:*:*

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