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Fencer Intel
high 7.5

CVE-2017-11914 in the critical feed json

ChakraCore vulnerable to privilege escalation due to exposure from scriptFunction

published 8y ago modified 4mo ago also GHSA-8r5c-8v97-g7vh , EUVD-2022-3223

cvss
7.5
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
62.6%
EPSS 62.6% chance of exploitation in 30 days, percentile 99.1%
public exploits
1
Exploit-DB

Summary

ChakraCore and Microsoft Edge in Windows 10 1511, 1607, 1703, 1709, and Windows Server 2016 allows an attacker to gain the same user rights as the current user, due to how the scripting engine handles objects in memory, aka "Scripting Engine Memory Corruption Vulnerability". This CVE ID is unique from CVE-2017-11886, CVE-2017-11889, CVE-2017-11890, CVE-2017-11893, CVE-2017-11894, CVE-2017-11895, CVE-2017-11901, CVE-2017-11903, CVE-2017-11905, CVE-2017-11905, CVE-2017-11907, CVE-2017-11908, CVE-2017-11909, CVE-2017-11910, CVE-2017-11911, CVE-2017-11912, CVE-2017-11913, CVE-2017-11916, CVE-2017-11918, and CVE-2017-11930.

Patch / fix

  • nuget Microsoft.ChakraCore 1.7.5
  • microsoft chakracore 1.7.5

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Timeline

  1. Published
  2. First public exploit (EDB-43713)

Exploit prediction

62.65% chance of exploitation in the next 30 days, higher than 99.1% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • EDB-43713 Microsoft Edge Chakra - 'JavascriptGeneratorFunction::GetPropertyBuiltIns' Type Confusion dos, 2018-01-17

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
GitHub 3.0 7.5 CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected packages

ecosystem package affected fixed in
nuget Microsoft.ChakraCore
<1.7.5
1.7.5

Affected products

  • Microsoft Corporation ChakraCore, Microsoft Edge

Classification

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

References

Sources

Fencer Intel 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.