How severe is CVE-2018-15389?

CVE-2018-15389 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-2018-15389 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (71st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-15389?

CVE-2018-15389 affects Cisco Prime Collaboration. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-15389?

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-2018-15389 published?

CVE-2018-15389 was published on 2018-10-05 and last updated on 2026-06-17.

CVE-2018-15389

CVE-2018-15389 is a critical-severity vulnerability in Cisco Prime Collaboration 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-798.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 2% (71st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-798
Affected product: Cisco Prime Collaboration
Published: 2018-10-05
Last modified: 2026-06-17

Description

A vulnerability in the install function of Cisco Prime Collaboration Provisioning (PCP) could allow an unauthenticated, remote attacker to access the administrative web interface using a default hard-coded username and password that are used during install. The vulnerability is due to a hard-coded password that, in some cases, is not replaced with a unique password. A successful exploit could allow the attacker to access the administrative web interface with administrator-level privileges.

Frequently asked questions

What is CVE-2018-15389?: A vulnerability in the install function of Cisco Prime Collaboration Provisioning (PCP) could allow an unauthenticated, remote attacker to access the administrative web interface using a default hard-coded username and password that are used during install. The vulnerability is due to a hard-coded password that, in some cases, is not replaced with a unique password. A successful exploit could allow the attacker to access the administrative web interface with administrator-level privileges.
How severe is CVE-2018-15389?: CVE-2018-15389 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-2018-15389 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (71st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-15389?: CVE-2018-15389 affects Cisco Prime Collaboration. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-15389?: 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-2018-15389 published?: CVE-2018-15389 was published on 2018-10-05 and last updated on 2026-06-17.

References

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20181003-cpcp-password

Affected products (1)

cpe:2.3:a:cisco:prime_collaboration:12.1:*:*:*:*:*:*:*

More vulnerabilities in Cisco Prime Collaboration

CVE-2018-0321 — Critical (CVSS 9.8): A vulnerability in Cisco Prime Collaboration Provisioning (PCP) could allow an unauthenticated, remote attacker to…
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