CVE-2015-4000
The TLS protocol 1.2 and earlier, when a DHE_EXPORT ciphersuite is enabled on a server but not on a client, does not properly convey a DHE_EXPORT choice, which allows man-in-the-middle attackers to conduct cipher-downgrade attacks by rewriting a ClientHello with DHE replaced by DHE_EXPORT and then rewriting a ServerHello with DHE_EXPORT replaced by DHE, aka the "Logjam" issue.
Published:May 20, 2015
Last Modified:May 27, 2026
EPS:May 21, 2015
EPSS Score:0.93743
CVSS Score:3.7
Affected Products
Vendor
Product
Action
Vendor
Apple
Product
Iphone Os
Apple
Iphone Os
Vendor
Apple
Product
Mac Os X
Apple
Mac Os X
Vendor
Apple
Product
Safari
Apple
Safari
Vendor
Canonical
Product
Ubuntu Linux
Canonical
Ubuntu Linux
Vendor
Debian
Product
Debian Linux
Debian
Debian Linux
Vendor
Google
Product
Chrome
Google
Chrome
Vendor
Hp
Product
Hp-ux
Hp
Hp-ux
Vendor
Ibm
Product
Content Manager
Ibm
Content Manager
Vendor
Microsoft
Product
Internet Explorer
Microsoft
Internet Explorer
Vendor
Mozilla
Product
Firefox
Mozilla
Firefox
Vendor
Mozilla
Product
Firefox Esr
Mozilla
Firefox Esr
Vendor
Mozilla
Product
Firefox Os
Mozilla
Firefox Os
Vendor
Mozilla
Product
Network Security Services
Mozilla
Network Security Services
Vendor
Mozilla
Product
Seamonkey
Mozilla
Seamonkey
Vendor
Mozilla
Product
Thunderbird
Mozilla
Thunderbird
Vendor
Openssl
Product
Openssl
Openssl
Openssl
Vendor
Opera
Product
Opera Browser
Opera
Opera Browser
Vendor
Oracle
Product
Jdk
Oracle
Jdk
Vendor
Oracle
Product
Jre
Oracle
Jre
Vendor
Oracle
Product
Jrockit
Oracle
Jrockit
Vendor
Oracle
Product
Sparc-opl Service Processor
Oracle
Sparc-opl Service Processor
Vendor
Redhat
Product
Enterprise Linux
Redhat
Enterprise Linux
Vendor
Redhat
Product
Jboss Enterprise Application Platform
Redhat
Jboss Enterprise Application Platform
Vendor
Redhat
Product
Jboss Enterprise Web Server
Redhat
Jboss Enterprise Web Server
Vendor
Redhat
Product
Network Satellite
Redhat
Network Satellite
Vendor
Redhat
Product
Rhel Extras
Redhat
Rhel Extras
Vendor
Redhat
Product
Rhel Extras Oracle Java
Redhat
Rhel Extras Oracle Java
Vendor
Suse
Product
Linux Enterprise Desktop
Suse
Linux Enterprise Desktop
Vendor
Suse
Product
Linux Enterprise Server
Suse
Linux Enterprise Server
Vendor
Suse
Product
Linux Enterprise Software Development Kit
Suse
Linux Enterprise Software Development Kit
Vendor
Suse
Product
Suse Linux Enterprise Server
Suse
Suse Linux Enterprise Server
Common Weakness Enumeration
Common Attack Pattern Enumeration and Classification (CAPEC)
Related CVEs
References
Common Vulnerability Scoring System
Attack Vector
Network
Adjacent
Local
Physical
Privileges Required
None
Low
High
User Interaction
None
Required
Scope
Unchanged
Changed
Confidentiality
None
Low
High
Integrity
None
Low
High
Availability
None
Low
High
