Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2015-4184

16
FAUCET Score

CVE-2015-4184 describes a vulnerability in the anti-spam scanner of Cisco Email Security Appliance (ESA) devices (versions 3.3.1-09, 7.5.1-gpl-022, and 8.5.6-074). This flaw allows remote attackers to bypass email restrictions by crafting a malformed DNS SPF record. With a CVSS score of 5.0 (AV:N/AC:L/Au:N/C:N/I:P/A:N), it is a medium-severity issue, indicating a network-based attack with low complexity that can lead to a partial integrity impact (bypassing restrictions) without requiring authentication. 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
3.331-09CPE matchmatch criteria
cpe:2.3:h:cisco:email_security_appliance:3.331-09:*:*:*:*:*:*:*
7.5.1-gpl-022CPE matchmatch criteria
cpe:2.3:h:cisco:email_security_appliance:7.5.1-gpl-022:*:*:*:*:*:*:*
8.5.6-074CPE matchmatch criteria
cpe:2.3:h:cisco:email_security_appliance:8.5.6-074:*:*:*:*:*:*:*

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
3.49%
Probability of exploitation in next 30 days
EPSS Percentile
87.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0349 is in the 84th percentile among its peer group of 23,725 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/viewAlert.x
Vendor Advisory
securityfocus.com / bid/75181
Third Party AdvisoryVDB Entry
securitytracker.com / id/1032582
Third Party AdvisoryVDB Entry