How severe is CVE-2017-12363?

CVE-2017-12363 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.

Is CVE-2017-12363 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-2017-12363?

CVE-2017-12363 primarily affects Cisco Webex Meetings Server. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2017-12363?

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

When was CVE-2017-12363 published?

CVE-2017-12363 was published on 2017-11-30 and last updated on 2026-06-17.

CVE-2017-12363

CVE-2017-12363 is a medium-severity vulnerability in Cisco Webex Meetings Server with a CVSS 3.x base score of 5.3. 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-668.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
CVSS v2: 5.0
EPSS exploit prediction: 2% (73rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-668
Affected product: Cisco Webex Meetings Server
Published: 2017-11-30
Last modified: 2026-06-17

Description

A vulnerability in Cisco WebEx Meeting Server could allow an unauthenticated, remote attacker to modify the welcome message of a meeting on an affected system. The vulnerability is due to insufficient security settings on meetings. An attacker could exploit this vulnerability by modifying the welcome message to a meeting. A successful exploit could allow the attacker to modify the welcome message of any known meeting. Cisco Bug IDs: CSCvf68695.

Frequently asked questions

What is CVE-2017-12363?: A vulnerability in Cisco WebEx Meeting Server could allow an unauthenticated, remote attacker to modify the welcome message of a meeting on an affected system. The vulnerability is due to insufficient security settings on meetings. An attacker could exploit this vulnerability by modifying the welcome message to a meeting. A successful exploit could allow the attacker to modify the welcome message of any known meeting. Cisco Bug IDs: CSCvf68695.
How severe is CVE-2017-12363?: CVE-2017-12363 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.
Is CVE-2017-12363 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-2017-12363?: CVE-2017-12363 primarily affects Cisco Webex Meetings Server. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2017-12363?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2017-12363 published?: CVE-2017-12363 was published on 2017-11-30 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:a:cisco:webex_meetings_server:2.6.0.8:*:*:*:*:*:*:*
cpe:2.3:a:cisco:webex_meetings_server:2.7:*:*:*:*:*:*:*

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