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CVE-2015-4288

14
FAUCET Score

CVE-2015-4288 describes a vulnerability in the LDAP implementation of Cisco Web Security Appliance (WSA), Email Security Appliance (ESA), and Content Security Management Appliance (SMA). These products fail to properly verify X.509 certificates from SSL servers, enabling man-in-the-middle (MITM) attackers to spoof legitimate servers. The vulnerability has a CVSS score of 4.3, indicating a medium attack complexity and a potential impact of information disclosure. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
8.5.0-000CPE matchmatch criteria
cpe:2.3:o:cisco:web_security_appliance:8.5.0-000:*:*:*:*:*:*:*
8.5.7-042CPE matchmatch criteria
cpe:2.3:h:cisco:email_security_appliance:8.5.7-042:*:*:*:*:*:*:*
8.3.6-048CPE matchmatch criteria
cpe:2.3:h:cisco:content_security_management_appliance:8.3.6-048:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.3MEDIUM

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

Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.48%
Probability of exploitation in next 30 days
EPSS Percentile
38.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0048 is in the 5th percentile among its peer group of 19,958 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, 0.0 Bluesky, 0.0 Mastodon, and 0.2 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