CVE-2015-1637observed exploitation

CVE-2015-1637

Published · Updated

30Vexday Risk Score

Prioritize patching. It exploitation observed by VulnCheck.

ssvc Attendepss 13%
from disclosure to weapon
Published on NVDMar 6
VulnCheck+417d
exploitation probability
13%top 4% of all CVEs
observed exploitation
yesVulnCheck
Schannel (aka Secure Channel) in Microsoft Windows Server 2003 SP2, Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8, Windows 8.1, Windows Server 2012 Gold and R2, and Windows RT Gold and 8.1 does not properly restrict TLS state transitions, which makes it easier for remote attackers to conduct cipher-downgrade attacks to EXPORT_RSA ciphers via crafted TLS traffic, related to the "FREAK" issue, a different vulnerability than CVE-2015-0204 and CVE-2015-1067.
Affected products
n/a · n/a
References
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2015/ms15-031https://freakattack.com/https://technet.microsoft.com/library/security/3046015http://web.archive.org/web/20150321220028/https://freakattack.com/http://www.securityfocus.com/bid/72965http://www.securitytracker.com/id/1031833