VulnerabilityModified

CVE-2018-0859

HIGH 7.5EPSS 17.7%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 17.7%, higher than 97% of all known CVEs. Patch or mitigate before the next change window.

Description

Microsoft Edge and ChakraCore in Microsoft Windows 10 Gold, 1511, 1607, 1703, 1709, and Windows Server 2016 allows remote code execution, due to how the scripting engine handles objects in memory, aka "Scripting Engine Memory Corruption Vulnerability". This CVE ID is unique from CVE-2018-0834, CVE-2018-0835, CVE-2018-0836, CVE-2018-0837, CVE-2018-0838, CVE-2018-0840, CVE-2018-0856, CVE-2018-0857, CVE-2018-0858, CVE-2018-0860, CVE-2018-0861, and CVE-2018-0866.

CVSS 3.0: 7.5 HIGHCVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS: 17.73% probability · 97th percentile
Public exploits: None in Exploit-DB
CISA KEV: Not listed
Weakness: CWE-787
Affected: microsoft/chakracore · microsoft/edge
Source: secure@microsoft.com

EPSS trend

EPSS 17.7% since 27 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

References

http://www.securityfocus.com/bid/102882Exploit, Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1040372Third Party Advisory, VDB Entry
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0859Vendor Advisory
http://www.securityfocus.com/bid/102882Exploit, Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1040372Third Party Advisory, VDB Entry
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0859Vendor Advisory

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.