How severe is CVE-2016-6448?

CVE-2016-6448 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2016-6448 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (89th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-6448?

CVE-2016-6448 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-2016-6448?

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

When was CVE-2016-6448 published?

CVE-2016-6448 was published on 2016-11-03 and last updated on 2026-06-17.

CVE-2016-6448

CVE-2016-6448 is a critical-severity vulnerability in Cisco Meeting Server with a CVSS 3.x base score of 9.8. 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-119.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 4% (89th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Cisco Meeting Server
Published: 2016-11-03
Last modified: 2026-06-17

Description

A vulnerability in the Session Description Protocol (SDP) parser of Cisco Meeting Server could allow an unauthenticated, remote attacker to execute arbitrary code on an affected system. This vulnerability affects the following products: Cisco Meeting Server releases prior to Release 2.0.3, Acano Server releases 1.9.x prior to Release 1.9.5, Acano Server releases 1.8.x prior to Release 1.8.17. More Information: CSCva76004. Known Affected Releases: 1.8.x 1.92.0.

Frequently asked questions

What is CVE-2016-6448?: A vulnerability in the Session Description Protocol (SDP) parser of Cisco Meeting Server could allow an unauthenticated, remote attacker to execute arbitrary code on an affected system. This vulnerability affects the following products: Cisco Meeting Server releases prior to Release 2.0.3, Acano Server releases 1.9.x prior to Release 1.9.5, Acano Server releases 1.8.x prior to Release 1.8.17. More Information: CSCva76004. Known Affected Releases: 1.8.x 1.92.0.
How severe is CVE-2016-6448?: CVE-2016-6448 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2016-6448 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (89th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-6448?: CVE-2016-6448 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-2016-6448?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2016-6448 published?: CVE-2016-6448 was published on 2016-11-03 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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