How severe is CVE-2018-0377?

CVE-2018-0377 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-2018-0377 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-0377?

CVE-2018-0377 primarily affects Cisco Mobility Services Engine. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2018-0377?

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-2018-0377 published?

CVE-2018-0377 was published on 2018-07-18 and last updated on 2026-06-17.

CVE-2018-0377

CVE-2018-0377 is a critical-severity vulnerability in Cisco Mobility Services Engine 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-306.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 3% (84th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-306
Affected product: Cisco Mobility Services Engine
Published: 2018-07-18
Last modified: 2026-06-17

Description

A vulnerability in the Open Systems Gateway initiative (OSGi) interface of Cisco Policy Suite before 18.1.0 could allow an unauthenticated, remote attacker to directly connect to the OSGi interface. The vulnerability is due to a lack of authentication. An attacker could exploit this vulnerability by directly connecting to the OSGi interface. An exploit could allow the attacker to access or change any files that are accessible by the OSGi process. Cisco Bug IDs: CSCvh18017.

Frequently asked questions

What is CVE-2018-0377?: A vulnerability in the Open Systems Gateway initiative (OSGi) interface of Cisco Policy Suite before 18.1.0 could allow an unauthenticated, remote attacker to directly connect to the OSGi interface. The vulnerability is due to a lack of authentication. An attacker could exploit this vulnerability by directly connecting to the OSGi interface. An exploit could allow the attacker to access or change any files that are accessible by the OSGi process. Cisco Bug IDs: CSCvh18017.
How severe is CVE-2018-0377?: CVE-2018-0377 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-2018-0377 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-0377?: CVE-2018-0377 primarily affects Cisco Mobility Services Engine. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2018-0377?: 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-2018-0377 published?: CVE-2018-0377 was published on 2018-07-18 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:a:cisco:mobility_services_engine:14.0.0:*:*:*:*:*:*:*
cpe:2.3:a:cisco:policy_suite:*:*:*:*:*:*:*:*

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