CVE-2015-4280

Cisco Prime Collaboration Assurance 10.0 allows remote attackers to cause a denial of service (HTTP service outage) via a crafted HTTP request, aka Bug ID CSCum38844.

Published: 2015-07-18 Last update: 2026-05-06 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2015-4280 is rated Moderate Risk (50.6/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 2.36%). Core evidence: EPSS rose +2.10% over the last day, indicating growing attacker interest. Mandatory action: Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2015-4280

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.26% 2.36% +2.10%
2 2025-06-04 0.62% 0.26% -0.35%
3 2025-03-17 0.62%

Full EPSS history (5 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2015-4280

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/C:N/I:N/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
10.0 2.9 [email protected]

Weakness enumeration for CVE-2015-4280

Affected software / configurations for CVE-2015-4280

Vendor Product Version Raw CPE
cisco prime_collaboration 10.0 cpe:2.3:a:cisco:prime_collaboration:10.0:*:*:*:*:*:*:*

References for CVE-2015-4280

cvelogic Threat Intelligence