How severe is CVE-2016-1338?

CVE-2016-1338 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2016-1338 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (73rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-1338?

CVE-2016-1338 primarily affects Cisco Telepresence Video Communication Server Software. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2016-1338?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2016-1338 published?

CVE-2016-1338 was published on 2016-03-12 and last updated on 2026-06-17.

CVE-2016-1338

CVE-2016-1338 is a medium-severity vulnerability in Cisco Telepresence Video Communication Server Software with a CVSS 3.x base score of 6.5. 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-20.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 8.0
EPSS exploit prediction: 2% (73rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Cisco Telepresence Video Communication Server Software
Published: 2016-03-12
Last modified: 2026-06-17

Description

Cisco TelePresence Video Communication Server (VCS) X8.5.1 and X8.5.2 allows remote authenticated users to cause a denial of service (VoIP outage) via a crafted SIP message, aka Bug ID CSCuu43026.

Frequently asked questions

What is CVE-2016-1338?: Cisco TelePresence Video Communication Server (VCS) X8.5.1 and X8.5.2 allows remote authenticated users to cause a denial of service (VoIP outage) via a crafted SIP message, aka Bug ID CSCuu43026.
How severe is CVE-2016-1338?: CVE-2016-1338 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2016-1338 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (73rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-1338?: CVE-2016-1338 primarily affects Cisco Telepresence Video Communication Server Software. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2016-1338?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2016-1338 published?: CVE-2016-1338 was published on 2016-03-12 and last updated on 2026-06-17.

References

http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160309-vcs

Affected products (2)

cpe:2.3:a:cisco:telepresence_video_communication_server_software:x8.5.1:*:*:*:*:*:*:*
cpe:2.3:a:cisco:telepresence_video_communication_server_software:x8.5.2:*:*:*:*:*:*:*

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