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Fencer Vulns
high 7.5

CVE-2017-8636 in the critical feed json

Microsoft browsers in Microsoft Windows 7 SP1, Windows Server 2008 R2 SP1, Windows 8.1 and Windows RT 8.1, Windows Server 2012 and R2, Wind…

published 2017-08-08 9 y ago modified 2026-06-17 4 mo ago also EUVD-2017-17585

cvss
7.5
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
72.1%
EPSS 72.1% chance of exploitation in 30 days, percentile 99.4%
public exploits
4
Exploit-DB

Summary

Microsoft browsers in Microsoft Windows 7 SP1, Windows Server 2008 R2 SP1, Windows 8.1 and Windows RT 8.1, Windows Server 2012 and R2, Windows 10 Gold, 1511, 1607, 1703, and Windows Server 2016 allow an attacker to execute arbitrary code in the context of the current user due to the way that Microsoft browser JavaScript engines render content when handling objects in memory, aka "Scripting Engine Memory Corruption Vulnerability". This CVE ID is unique from CVE-2017-8634, CVE-2017-8635, CVE-2017-8638, CVE-2017-8639, CVE-2017-8640, CVE-2017-8641, CVE-2017-8645, CVE-2017-8646, CVE-2017-8647, CVE-2017-8655, CVE-2017-8656, CVE-2017-8657, CVE-2017-8670, CVE-2017-8671, CVE-2017-8672, and CVE-2017-8674.

Patch / fix

Timeline

  1. Published
  2. First public exploit (EDB-42478)

Exploit prediction

72.12% chance of exploitation in the next 30 days, higher than 99.4% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-42478 Microsoft Edge Chakra - 'EmitNew' Integer Overflow dos, 2017-08-17
  • EDB-42468 Microsoft Edge Chakra - Heap Buffer Overflow dos, 2017-08-17
  • EDB-42467 Microsoft Edge Chakra - NULL Pointer Dereference dos, 2017-08-17
  • EDB-42466 Microsoft Edge Chakra - Buffer Overflow dos, 2017-08-17

CVSS scores

assigned by version score vector
NVD 3.0 7.5 CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD 2.0 7.6 AV:N/AC:H/Au:N/C:C/I:C/A:C

Affected products

  • Microsoft Corporation Microsoft Scripting Engine

Classification

Weakness
  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

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.