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Fencer Vulns
medium 5.0

CVE-2017-8477 json

Microsoft Windows 7 SP1, Windows Server 2008 SP2 and R2 SP1, Windows 8.1 and Windows RT 8.1, Windows Server 2012 and R2, Windows 10 Gold, 1…

published 2017-06-15 9 y ago modified 2026-06-17 4 mo ago also EUVD-2017-17427

cvss
5.0
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
5.1%
EPSS 5.1% chance of exploitation in 30 days, percentile 92%
public exploits
1
Exploit-DB

Summary

Microsoft Windows 7 SP1, Windows Server 2008 SP2 and R2 SP1, Windows 8.1 and Windows RT 8.1, Windows Server 2012 and R2, Windows 10 Gold, 1511, 1607, and 1703, and Windows Server 2016 allow an authenticated attacker to run a specially crafted application when the Windows kernel improperly initializes objects in memory, aka "Win32k Information Disclosure Vulnerability". This CVE ID is unique from CVE-2017-8470, CVE-2017-8471, CVE-2017-8472, CVE-2017-8473, CVE-2017-8475, and CVE-2017-8484.

Patch / fix

Timeline

  1. Published
  2. First public exploit (EDB-42230)

Exploit prediction

5.11% chance of exploitation in the next 30 days, higher than 92% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-42230 Microsoft Windows - 'win32k!NtGdiMakeFontDir' Kernel Stack Memory Disclosure dos, 2017-06-22

CVSS scores

assigned by version score vector
NVD 3.0 5.0 CVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N
NVD 2.0 1.9 AV:L/AC:M/Au:N/C:P/I:N/A:N

Affected products

  • Microsoft Corporation Microsoft Windows

Classification

Weakness
  • CWE-200 Exposure of Sensitive Information to an Unauthorized Actor

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.