CVE-2015-6427

Cisco FireSIGHT Management Center allows remote attackers to bypass the HTTP attack detection feature and avoid triggering Snort IDS rules via an SSL session that is mishandled after decryption, aka Bug ID CSCux53437.

Published: 2015-12-18 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2015-6427 is rated Moderate Risk (47.4/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.73%). EPSS rose +1.34% over the last day, indicating growing attacker interest. 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-2015-6427

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 0.40% 1.73% +1.34%
2 2025-07-02 0.59% 0.40% -0.19%
3 2025-03-17 — 0.59% —

Full EPSS history (5 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2015-6427

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:P/A:N 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:P)
Partial integrity impact.
Availability impact (A:N)
No availability impact.
 10.0 2.9 [email protected]

Weakness enumeration for CVE-2015-6427

Affected software / configurations for CVE-2015-6427

Vendor Product Version Raw CPE
cisco firesight_system_software 5.3.0 cpe:2.3:a:cisco:firesight_system_software:5.3.0:*:*:*:*:*:*:*
cisco firesight_system_software 5.3.0.1 cpe:2.3:a:cisco:firesight_system_software:5.3.0.1:*:*:*:*:*:*:*
cisco firesight_system_software 5.3.0.2 cpe:2.3:a:cisco:firesight_system_software:5.3.0.2:*:*:*:*:*:*:*
cisco firesight_system_software 5.3.1 cpe:2.3:a:cisco:firesight_system_software:5.3.1:*:*:*:*:*:*:*
cisco firesight_system_software 5.3.1.1 cpe:2.3:a:cisco:firesight_system_software:5.3.1.1:*:*:*:*:*:*:*
cisco firesight_system_software 5.3.1.2 cpe:2.3:a:cisco:firesight_system_software:5.3.1.2:*:*:*:*:*:*:*
cisco firesight_system_software 5.3.1.3 cpe:2.3:a:cisco:firesight_system_software:5.3.1.3:*:*:*:*:*:*:*
cisco firesight_system_software 5.3.1.4 cpe:2.3:a:cisco:firesight_system_software:5.3.1.4:*:*:*:*:*:*:*
cisco firesight_system_software 5.3.1.5 cpe:2.3:a:cisco:firesight_system_software:5.3.1.5:*:*:*:*:*:*:*
cisco firesight_system_software 5.3.1.7 cpe:2.3:a:cisco:firesight_system_software:5.3.1.7:*:*:*:*:*:*:*
cisco firesight_system_software 5.4.0 cpe:2.3:a:cisco:firesight_system_software:5.4.0:*:*:*:*:*:*:*
cisco firesight_system_software 5.4.0.1 cpe:2.3:a:cisco:firesight_system_software:5.4.0.1:*:*:*:*:*:*:*
cisco firesight_system_software 5.4.0.4 cpe:2.3:a:cisco:firesight_system_software:5.4.0.4:*:*:*:*:*:*:*
cisco firesight_system_software 5.4.1 cpe:2.3:a:cisco:firesight_system_software:5.4.1:*:*:*:*:*:*:*
cisco firesight_system_software 5.4.1.2 cpe:2.3:a:cisco:firesight_system_software:5.4.1.2:*:*:*:*:*:*:*
cisco firesight_system_software 5.4.1.3 cpe:2.3:a:cisco:firesight_system_software:5.4.1.3:*:*:*:*:*:*:*
cisco firesight_system_software 5.4.1.4 cpe:2.3:a:cisco:firesight_system_software:5.4.1.4:*:*:*:*:*:*:*
cisco firesight_system_software 6.0.0 cpe:2.3:a:cisco:firesight_system_software:6.0.0:*:*:*:*:*:*:*
cisco firesight_system_software 6.0.0.1 cpe:2.3:a:cisco:firesight_system_software:6.0.0.1:*:*:*:*:*:*:*
cisco firesight_system_software 6.0.1 cpe:2.3:a:cisco:firesight_system_software:6.0.1:*:*:*:*:*:*:*

References for CVE-2015-6427

cvelogic Threat Intelligence