CVE-2016-10259

Symantec SSL Visibility (SSLV) 3.8.4FC, 3.9, 3.10 before 3.10.4.1, and 3.11 before 3.11.3.1 is susceptible to a denial-of-service vulnerability that impacts the SSL servers for intercepted SSL connections. A malicious SSL client can, under certain circumstances, temporarily exhaust the TCP connection pool of an SSL server.

Published: 2017-04-11 Last update: 2026-05-13 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2016-10259 is rated Moderate Risk (45.5/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 0.46%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2016-10259

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2025-03-17 0.32% 0.46% +0.14%
2 2023-03-07 0.95% 0.32% -0.64%
3 2022-02-04 — 0.95% —

Full EPSS history (3 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2016-10259

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.9 3.0 MEDIUM
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:H)
Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.2 3.6 [email protected]
4.3 2.0 MEDIUM
AV:N/AC:M/Au:N/C:N/I:N/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
 8.6 2.9 [email protected]

Weakness enumeration for CVE-2016-10259

Affected software / configurations for CVE-2016-10259

Vendor Product Version Raw CPE
bluecoat ssl_visibility_appliance_sv1800_firmware 3.8.4 cpe:2.3:o:bluecoat:ssl_visibility_appliance_sv1800_firmware:3.8.4:*:*:*:*:*:*:*
bluecoat ssl_visibility_appliance_sv1800_firmware 3.9 cpe:2.3:o:bluecoat:ssl_visibility_appliance_sv1800_firmware:3.9:*:*:*:*:*:*:*
bluecoat ssl_visibility_appliance_sv1800_firmware 3.10 cpe:2.3:o:bluecoat:ssl_visibility_appliance_sv1800_firmware:3.10:*:*:*:*:*:*:*
bluecoat ssl_visibility_appliance_sv1800_firmware 3.11 cpe:2.3:o:bluecoat:ssl_visibility_appliance_sv1800_firmware:3.11:*:*:*:*:*:*:*
bluecoat ssl_visibility_appliance_sv1800_firmware 3.11.1.1 cpe:2.3:o:bluecoat:ssl_visibility_appliance_sv1800_firmware:3.11.1.1:*:*:*:*:*:*:*
bluecoat ssl_visibility_appliance_sv1800_firmware 3.11.1.2 cpe:2.3:o:bluecoat:ssl_visibility_appliance_sv1800_firmware:3.11.1.2:*:*:*:*:*:*:*
bluecoat ssl_visibility_appliance_sv1800_firmware 3.11.2.1 cpe:2.3:o:bluecoat:ssl_visibility_appliance_sv1800_firmware:3.11.2.1:*:*:*:*:*:*:*
bluecoat ssl_visibility_appliance_sv800_firmware 3.8.4 cpe:2.3:o:bluecoat:ssl_visibility_appliance_sv800_firmware:3.8.4:*:*:*:*:*:*:*
bluecoat ssl_visibility_appliance_sv800_firmware 3.9 cpe:2.3:o:bluecoat:ssl_visibility_appliance_sv800_firmware:3.9:*:*:*:*:*:*:*
bluecoat ssl_visibility_appliance_sv800_firmware 3.10 cpe:2.3:o:bluecoat:ssl_visibility_appliance_sv800_firmware:3.10:*:*:*:*:*:*:*
bluecoat ssl_visibility_appliance_sv800_firmware 3.11 cpe:2.3:o:bluecoat:ssl_visibility_appliance_sv800_firmware:3.11:*:*:*:*:*:*:*
bluecoat ssl_visibility_appliance_sv800_firmware 3.11.1.1 cpe:2.3:o:bluecoat:ssl_visibility_appliance_sv800_firmware:3.11.1.1:*:*:*:*:*:*:*
bluecoat ssl_visibility_appliance_sv800_firmware 3.11.1.2 cpe:2.3:o:bluecoat:ssl_visibility_appliance_sv800_firmware:3.11.1.2:*:*:*:*:*:*:*
bluecoat ssl_visibility_appliance_sv800_firmware 3.11.2.1 cpe:2.3:o:bluecoat:ssl_visibility_appliance_sv800_firmware:3.11.2.1:*:*:*:*:*:*:*
bluecoat ssl_visibility_appliance_sv3800_firmware 3.8.4 cpe:2.3:o:bluecoat:ssl_visibility_appliance_sv3800_firmware:3.8.4:*:*:*:*:*:*:*
bluecoat ssl_visibility_appliance_sv3800_firmware 3.9 cpe:2.3:o:bluecoat:ssl_visibility_appliance_sv3800_firmware:3.9:*:*:*:*:*:*:*
bluecoat ssl_visibility_appliance_sv3800_firmware 3.10 cpe:2.3:o:bluecoat:ssl_visibility_appliance_sv3800_firmware:3.10:*:*:*:*:*:*:*
bluecoat ssl_visibility_appliance_sv3800_firmware 3.11 cpe:2.3:o:bluecoat:ssl_visibility_appliance_sv3800_firmware:3.11:*:*:*:*:*:*:*
bluecoat ssl_visibility_appliance_sv3800_firmware 3.11.1.1 cpe:2.3:o:bluecoat:ssl_visibility_appliance_sv3800_firmware:3.11.1.1:*:*:*:*:*:*:*
bluecoat ssl_visibility_appliance_sv3800_firmware 3.11.1.2 cpe:2.3:o:bluecoat:ssl_visibility_appliance_sv3800_firmware:3.11.1.2:*:*:*:*:*:*:*
bluecoat ssl_visibility_appliance_sv3800_firmware 3.11.2.1 cpe:2.3:o:bluecoat:ssl_visibility_appliance_sv3800_firmware:3.11.2.1:*:*:*:*:*:*:*
bluecoat ssl_visibility_appliance_sv2800_firmware 3.8.4 cpe:2.3:o:bluecoat:ssl_visibility_appliance_sv2800_firmware:3.8.4:*:*:*:*:*:*:*
bluecoat ssl_visibility_appliance_sv2800_firmware 3.9 cpe:2.3:o:bluecoat:ssl_visibility_appliance_sv2800_firmware:3.9:*:*:*:*:*:*:*
bluecoat ssl_visibility_appliance_sv2800_firmware 3.10 cpe:2.3:o:bluecoat:ssl_visibility_appliance_sv2800_firmware:3.10:*:*:*:*:*:*:*
bluecoat ssl_visibility_appliance_sv2800_firmware 3.11 cpe:2.3:o:bluecoat:ssl_visibility_appliance_sv2800_firmware:3.11:*:*:*:*:*:*:*
bluecoat ssl_visibility_appliance_sv2800_firmware 3.11.1.1 cpe:2.3:o:bluecoat:ssl_visibility_appliance_sv2800_firmware:3.11.1.1:*:*:*:*:*:*:*
bluecoat ssl_visibility_appliance_sv2800_firmware 3.11.1.2 cpe:2.3:o:bluecoat:ssl_visibility_appliance_sv2800_firmware:3.11.1.2:*:*:*:*:*:*:*
bluecoat ssl_visibility_appliance_sv2800_firmware 3.11.2.1 cpe:2.3:o:bluecoat:ssl_visibility_appliance_sv2800_firmware:3.11.2.1:*:*:*:*:*:*:*

References for CVE-2016-10259

cvelogic Threat Intelligence