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CVE-2015-4138

14
FAUCET Score

CVE-2015-4138 describes a vulnerability in the WebUI component of Blue Coat SSL Visibility Appliances (SV800, SV1800, SV2800, SV3800) versions 3.6.x through 3.8.x before 3.8.4. The vulnerability stems from the omission of the HTTPOnly flag in the Set-Cookie header for the administrator's cookie, allowing script access to this potentially sensitive information. With a CVSS score of 4.3, this medium-complexity vulnerability could lead to information disclosure if successfully exploited by a remote attacker. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 3.8.3CPE matchmatch criteria
cpe:2.3:o:blue_coat:ssl_visibility_appliance_sv1800_firmware:*:*:*:*:*:*:*:*
<= 3.8.3CPE matchmatch criteria
cpe:2.3:o:blue_coat:ssl_visibility_appliance_sv800_firmware:*:*:*:*:*:*:*:*
<= 3.8.3CPE matchmatch criteria
cpe:2.3:o:blue_coat:ssl_visibility_appliance_sv3800_firmware:*:*:*:*:*:*:*:*
<= 3.8.3CPE matchmatch criteria
cpe:2.3:o:blue_coat:ssl_visibility_appliance_sv2800_firmware:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.3MEDIUM

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

Confidentiality Impact
PARTIAL
Integrity Impact
NONE
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
1.43%
Probability of exploitation in next 30 days
EPSS Percentile
70.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0143 is in the 42nd 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

Remediation records are not available for this CVE.

References

bto.bluecoat.com / security-advisory/sa96
Vendor Advisory
kb.cert.org / vuls/id/498348
Third Party AdvisoryUS Government Resource