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CVE-2015-6427

15
FAUCET Score

CVE-2015-6427 describes a vulnerability in Cisco FireSIGHT Management Center where remote attackers can bypass HTTP attack detection and Snort IDS rules. This occurs due to mishandling of SSL sessions after decryption, affecting the cisco firesight_system_software. With a CVSS score of 5.0, this medium-severity vulnerability allows for integrity impact (I:P) with low attack complexity (AC:L) and no authentication required (Au:N), potentially allowing malicious traffic to evade detection. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
5.3.0CPE matchmatch criteria
cpe:2.3:a:cisco:firesight_system_software:5.3.0:*:*:*:*:*:*:*
5.3.0.1CPE matchmatch criteria
cpe:2.3:a:cisco:firesight_system_software:5.3.0.1:*:*:*:*:*:*:*
5.3.0.2CPE matchmatch criteria
cpe:2.3:a:cisco:firesight_system_software:5.3.0.2:*:*:*:*:*:*:*
5.3.1CPE matchmatch criteria
cpe:2.3:a:cisco:firesight_system_software:5.3.1:*:*:*:*:*:*:*
5.3.1.1CPE matchmatch criteria
cpe:2.3:a:cisco:firesight_system_software:5.3.1.1:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.0MEDIUM

AV:N/AC:L/Au:N/C:N/I:P/A:N

Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
1.73%
Probability of exploitation in next 30 days
EPSS Percentile
75.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0173 is in the 61st percentile among its peer group of 23,723 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

ciscovendor investigatingvia nvd_reference
View patch

References

tools.cisco.com / security/center/content/CiscoSecurityAdvisory/cisco-sa-20151217-fsm
Vendor Advisory
securitytracker.com / id/1034488