Microsoft Windows Codecs Library Information Disclosure Vulnerability

What type of information could be disclosed by this vulnerability?
An attacker running in a restricted app environment could view portions of private image data previously handled by the thumbnail service outside that environment. The vulnerability does not provide unrestricted access to arbitrary files or credentials.

According to the CVSS metric, attack complexity is high (AC:H). What does that mean for this vulnerability?
Successful exploitation requires the thumbnail service to have processed private image data and later reuse related memory for the attacker's thumbnail request. The attacker cannot assume that this combination of prior activity and memory reuse will occur.

Security updates
10.0.14393.9688 — https://support.microsoft.com/help/5131291
10.0.17763.9487 — https://support.microsoft.com/help/5131085
10.0.19044.7846 — https://support.microsoft.com/help/5131096
10.0.20348.5870 — https://support.microsoft.com/help/5131090
10.0.22631.7711 — https://support.microsoft.com/help/5131087
10.0.26100.9974 — https://support.microsoft.com/help/5132061
10.0.26100.9911 — https://support.microsoft.com/help/5132043
10.0.26100.33822 — https://support.microsoft.com/help/5131080
10.0.26100.33730 — https://support.microsoft.com/help/5131077
10.0.28000.3501 — https://support.microsoft.com/help/5132059