CVE-2015-1637

Description

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.

Category

4.3
CVSS
Severity: Medium
CVSS 2.0 •
EPSS 53.48% Top 5%
Vendor Advisory microsoft.com Vendor Advisory freakattack.com Vendor Advisory microsoft.com
Affected: n/a n/a
Published at:
Updated at:

References

Frequently Asked Questions

What is the severity of CVE-2015-1637?
CVE-2015-1637 has been scored as a medium severity vulnerability.
How to fix CVE-2015-1637?
To fix CVE-2015-1637, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2015-1637 being actively exploited in the wild?
It is possible that CVE-2015-1637 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~53% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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