How severe is CVE-2018-0321?

CVE-2018-0321 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-2018-0321 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (88th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-0321?

CVE-2018-0321 primarily affects Cisco Prime Collaboration. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2018-0321?

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-2018-0321 published?

CVE-2018-0321 was published on 2018-06-07 and last updated on 2026-06-17.

CVE-2018-0321

CVE-2018-0321 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-287.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 4% (88th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-287
Affected product: Cisco Prime Collaboration
Published: 2018-06-07
Last modified: 2026-06-17

Description

A vulnerability in Cisco Prime Collaboration Provisioning (PCP) could allow an unauthenticated, remote attacker to access the Java Remote Method Invocation (RMI) system. The vulnerability is due to an open port in the Network Interface and Configuration Engine (NICE) service. An attacker could exploit this vulnerability by accessing the open RMI system on an affected PCP instance. An exploit could allow the attacker to perform malicious actions that affect PCP and the devices that are connected to it. This vulnerability affects Cisco Prime Collaboration Provisioning (PCP) Releases 11.6 and prior. Cisco Bug IDs: CSCvd61746.

Frequently asked questions

What is CVE-2018-0321?: A vulnerability in Cisco Prime Collaboration Provisioning (PCP) could allow an unauthenticated, remote attacker to access the Java Remote Method Invocation (RMI) system. The vulnerability is due to an open port in the Network Interface and Configuration Engine (NICE) service. An attacker could exploit this vulnerability by accessing the open RMI system on an affected PCP instance. An exploit could allow the attacker to perform malicious actions that affect PCP and the devices that are connected to it. This vulnerability affects Cisco Prime Collaboration Provisioning (PCP) Releases 11.6 and prior. Cisco Bug IDs: CSCvd61746.
How severe is CVE-2018-0321?: CVE-2018-0321 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-2018-0321 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (88th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-0321?: CVE-2018-0321 primarily affects Cisco Prime Collaboration. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2018-0321?: 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-2018-0321 published?: CVE-2018-0321 was published on 2018-06-07 and last updated on 2026-06-17.

References

Affected products (3)

cpe:2.3:a:cisco:prime_collaboration:*:*:*:*:*:*:*:*
cpe:2.3:a:cisco:prime_collaboration_assurance:*:*:*:*:*:*:*:*
cpe:2.3:a:cisco:prime_collaboration_provisioning:*:*:*:*:*:*:*:*

More vulnerabilities in Cisco Prime Collaboration

CVE-2018-15389 — Critical (CVSS 9.8): A vulnerability in the install function of Cisco Prime Collaboration Provisioning (PCP) could allow an unauthenticated,…
CVE-2018-0320 — Critical (CVSS 9.8): A vulnerability in the web framework code of Cisco Prime Collaboration Provisioning (PCP) could allow an…
CVE-2018-0319 — Critical (CVSS 9.8): A vulnerability in the password recovery function of Cisco Prime Collaboration Provisioning (PCP) could allow an…
CVE-2018-0318 — Critical (CVSS 9.8): A vulnerability in the password reset function of Cisco Prime Collaboration Provisioning (PCP) could allow an…
CVE-2018-0336 — High (CVSS 8.8): A vulnerability in the batch provisioning feature of Cisco Prime Collaboration Provisioning could allow an…
CVE-2018-0322 — High (CVSS 8.8): A vulnerability in the web management interface of Cisco Prime Collaboration Provisioning (PCP) could allow an…

All CVEs affecting Cisco Prime Collaboration →

Other CWE-287 (Improper Authentication) vulnerabilities

CVE-2026-45480 — Critical (CVSS 10.0): Improper authentication in Azure Active Directory allows an unauthorized attacker to elevate privileges over a network.
CVE-2026-46389 — Critical (CVSS 10.0): UDS Identity Config builds the Keycloak configuration image (realm, plugins, theme, truststore, JARs) consumed by UDS…
CVE-2026-10611 — Critical (CVSS 10.0): An authentication bypass vulnerability exists in MISP when LDAP mixed authentication is enabled with OTP enforcement.…
CVE-2026-47280 — Critical (CVSS 10.0): Improper authentication in Azure Resource Manager (ARM) allows an unauthorized attacker to elevate privileges over a…
CVE-2026-42822 — Critical (CVSS 10.0): Improper authentication in Azure Local Disconnected Operations allows an unauthorized attacker to elevate privileges…
CVE-2026-20182 — Critical (CVSS 10.0): May 2026: This security advisory provides the details and fix information for a vulnerability that was discovered and…

Browse all CWE-287 (Improper Authentication) vulnerabilities →