Vulnerabilities > Mozilla > Thunderbird > 31.8

DATE CVE VULNERABILITY TITLE RISK
2015-05-21 CVE-2015-4000 Cryptographic Issues vulnerability in multiple products
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.
3.7