How severe is CVE-2018-15379?

CVE-2018-15379 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-2018-15379 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 86% (100th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-15379?

CVE-2018-15379 primarily affects Cisco Prime Infrastructure. In total, 10 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2018-15379?

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-2018-15379 published?

CVE-2018-15379 was published on 2018-10-05 and last updated on 2026-06-17.

CVE-2018-15379

CVE-2018-15379 is a critical-severity vulnerability in Cisco Prime Infrastructure with a CVSS 3.x base score of 9.8. Its EPSS exploit-prediction score of 86% places it in the 100th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-732.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 86% (100th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-732
Affected product: Cisco Prime Infrastructure
Published: 2018-10-05
Last modified: 2026-06-17

Description

A vulnerability in which the HTTP web server for Cisco Prime Infrastructure (PI) has unrestricted directory permissions could allow an unauthenticated, remote attacker to upload an arbitrary file. This file could allow the attacker to execute commands at the privilege level of the user prime. This user does not have administrative or root privileges. The vulnerability is due to an incorrect permission setting for important system directories. An attacker could exploit this vulnerability by uploading a malicious file by using TFTP, which can be accessed via the web-interface GUI. A successful exploit could allow the attacker to run commands on the targeted application without authentication.

Frequently asked questions

What is CVE-2018-15379?: A vulnerability in which the HTTP web server for Cisco Prime Infrastructure (PI) has unrestricted directory permissions could allow an unauthenticated, remote attacker to upload an arbitrary file. This file could allow the attacker to execute commands at the privilege level of the user prime. This user does not have administrative or root privileges. The vulnerability is due to an incorrect permission setting for important system directories. An attacker could exploit this vulnerability by uploading a malicious file by using TFTP, which can be accessed via the web-interface GUI. A successful exploit could allow the attacker to run commands on the targeted application without authentication.
How severe is CVE-2018-15379?: CVE-2018-15379 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-2018-15379 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 86% (100th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-15379?: CVE-2018-15379 primarily affects Cisco Prime Infrastructure. In total, 10 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2018-15379?: 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-2018-15379 published?: CVE-2018-15379 was published on 2018-10-05 and last updated on 2026-06-17.

References

Affected products (10)

cpe:2.3:a:cisco:prime_infrastructure:3.2:*:*:*:*:*:*:*
cpe:2.3:a:cisco:prime_infrastructure:3.2:fips:*:*:*:*:*:*
cpe:2.3:a:cisco:prime_infrastructure:3.2\(0.0\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:prime_infrastructure:3.2\(1.0\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:prime_infrastructure:3.2\(2.0\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:prime_infrastructure:3.3:*:*:*:*:*:*:*
cpe:2.3:a:cisco:prime_infrastructure:3.3\(0.0\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:prime_infrastructure:3.4:*:*:*:*:*:*:*
cpe:2.3:a:cisco:prime_infrastructure:3.4\(0.0\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:prime_infrastructure:3.5\(0.0\):*:*:*:*:*:*:*

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