How severe is CVE-2015-4331?

CVE-2015-4331 has a CVSS 2.0 base score of 3.5, rated low severity.

Is CVE-2015-4331 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-4331?

CVE-2015-4331 affects Cisco Prime Infrastructure. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2015-4331?

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

When was CVE-2015-4331 published?

CVE-2015-4331 was published on 2015-08-22 and last updated on 2026-06-17.

CVE-2015-4331

CVE-2015-4331 is a low-severity vulnerability in Cisco Prime Infrastructure with a CVSS 2.0 base score of 3.5. 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-264.

Key facts

Severity: Low (CVSS 2.0 base score 3.5)
EPSS exploit prediction: 2% (76th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-264
Affected product: Cisco Prime Infrastructure
Published: 2015-08-22
Last modified: 2026-06-17

Description

Cisco Prime Infrastructure (PI) 1.4(0.45) and earlier, when AAA authentication is used, allows remote authenticated users to bypass intended access restrictions via a username with a modified composition of lowercase and uppercase characters, aka Bug ID CSum59958.

Frequently asked questions

What is CVE-2015-4331?: Cisco Prime Infrastructure (PI) 1.4(0.45) and earlier, when AAA authentication is used, allows remote authenticated users to bypass intended access restrictions via a username with a modified composition of lowercase and uppercase characters, aka Bug ID CSum59958.
How severe is CVE-2015-4331?: CVE-2015-4331 has a CVSS 2.0 base score of 3.5, rated low severity.
Is CVE-2015-4331 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2015-4331?: CVE-2015-4331 affects Cisco Prime Infrastructure. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2015-4331?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2015-4331 published?: CVE-2015-4331 was published on 2015-08-22 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:cisco:prime_infrastructure:*:*:*:*:*:*:*:*

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