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CVE-2015-2855

14
FAUCET Score

CVE-2015-2855 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 prior to 3.8.4. The flaw lies in the failure to set the secure flag for the administrator's cookie during HTTPS sessions. This medium-complexity vulnerability (CVSS 4.3) allows remote attackers to potentially capture the administrator's cookie by intercepting its transmission over an HTTP session, leading to information disclosure. There is no impact on integrity or availability. There is no evidence of active exploitation, and public exploit code (Metasploit, Nuclei, ExploitDB) is unavailable. While there is minimal community discussion and media coverage, the vulnerability is not listed on the CISA KEV catalog.

Impacted Technologies

VendorProductVersion(s)CPE
<= 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_sv1800_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
1.45%
Probability of exploitation in next 30 days
EPSS Percentile
70.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0145 is in the 43rd 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

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
securityfocus.com / bid/74921