CVE-2018-8631
HighPublic exploitA remote code execution vulnerability exists when Internet Explorer improperly accesses objects in memory, aka "Internet Explorer Memory Corruption Vulnerability." This affects Internet Explorer 9, Internet Explorer 11, Internet Explorer 10.
Published Dec 11, 2018 · Updated Nov 21, 2024
Key Facts
Patch immediately- CVE-2018-8631 is a high-severity vulnerability (CVSS 7.5 v3) affecting Internet Explorer (Microsoft), Internet Explorer 10, Internet Explorer 11 and 1 more product.
- It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
- EPSS estimates a 68% probability of exploitation in the next 30 days.
- No fixed version is listed yet; check the vendor advisory for mitigations.
- Brandefense priority: patch immediately, because it is very likely to be exploited soon.
CVSS v3
7.5
CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
68%
Higher than 99.3% of all scored CVEs
Exploited in the wild
No known
Not in a known-exploited catalog
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2018-8631 brief as a PDF
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Description
A remote code execution vulnerability exists when Internet Explorer improperly accesses objects in memory, aka "Internet Explorer Memory Corruption Vulnerability." This affects Internet Explorer 9, Internet Explorer 11, Internet Explorer 10.
Affected Products
6 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| Internet ExplorerMicrosoft | 10, 11, 9 | n/a |
| Internet Explorer 10 | >= Windows Server 2012 | n/a |
| Internet Explorer 11 | >= Windows 10 for 32-bit Systems | n/a |
| Internet Explorer 9 | >= Windows Server 2008 for 32-bit Systems Service Pack 2 | n/a |
Timeline
Publicly disclosed
Dec 11, 2018
Last updated
Nov 21, 2024
Weakness Type
- CWE-787 Out-of-bounds Write
References
- advisory106118
- patchhttps://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8631
- exploitExploitDB-46001
- exploit46001
FAQ
Common Questions.
A remote code execution vulnerability exists when Internet Explorer improperly accesses objects in memory, aka "Internet Explorer Memory Corruption Vulnerability." This affects Internet Explorer 9, Internet Explorer 11, Internet Explorer 10.
Affected: Internet Explorer (Microsoft) versions 10, 11, 9; Internet Explorer 10 versions >= Windows Server 2012; Internet Explorer 11 versions >= Windows 10 for 32-bit Systems, among others. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.
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