Public exploit available
Public proof-of-concept or exploit code exists (ExploitDB / Metasploit / Nuclei).

CVE-2018-8291 — Type Confusion in Microsoft Chakracore

CWE-843 — Type ConfusionCWE-787 — Out-of-bounds Write11 documents6 sources
Severity
7.5HIGHNVD
EPSS
76.2%
top 1.07%
CISA KEV
Not in KEV
Exploit
PoC available
Public exploit / PoC exists
Affected products
4
Microsoft ChakracoreMicrosoft Internet Explorer 11Microsoft Edge+1 more
Timeline
PublishedJul 11
Latest updateMay 13

Description

A remote code execution vulnerability exists in the way the scripting engine handles objects in memory in Microsoft browsers, aka "Scripting Engine Memory Corruption Vulnerability." This affects ChakraCore, Internet Explorer 11, Microsoft Edge. This CVE ID is unique from CVE-2018-8242, CVE-2018-8283, CVE-2018-8287, CVE-2018-8288, CVE-2018-8296, CVE-2018-8298.

CVSS vector

CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:HExploitability: 1.6 | Impact: 5.9

Affected Packages5 packages

▶CVEListV5microsoft/internet_explorer_1118 versions+17
▶NVDmicrosoft/chakracore< 1.10.1
▶CVEListV5microsoft/chakracoreChakraCore
▶CVEListV5microsoft/microsoft_edge11 versions+10

Patches

Patch: portal.msrc.microsoft.com ↗Patch: portal.msrc.microsoft.com ↗

🔴Vulnerability Details

7
OSV
ChakraCore RCE Vulnerability↗2022-05-13
▶
GHSA
ChakraCore RCE Vulnerability↗2022-05-13
▶
GHSA
ChakraCore RCE Vulnerability↗2022-05-13
▶
GHSA
ChakraCore RCE Vulnerability↗2022-05-13
▶
GHSA
ChakraCore RCE Vulnerability↗2022-05-13
▶

💥Exploits & PoCs

1
Exploit-DB
Microsoft Edge Chakra JIT - 'DictionaryPropertyDescriptor::CopyFrom' Type Confusion↗2018-08-17
▶

📋Vendor Advisories

1
Microsoft
Scripting Engine Memory Corruption Vulnerability↗2018-07-10
▶
CVE-2018-8291 — Type Confusion in Microsoft Chakracore | cvebase