Buffer overflow in Microsoft Internet_explorer
CVE-2018-8631
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 1…
Vulnerability class: Buffer Overflow
EPSS: 0.692 (99.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H.
Affected products
- Microsoft Internet_explorer — versions 9, 10, 11
- Microsoft Internet Explorer 10 — versions Windows Server 2012
- Microsoft Internet Explorer 11 — versions Windows 10 for 32-bit Systems, Windows 10 for x64-based Systems, Windows 10 Version 1607 for 32-bit Systems
- Microsoft Internet Explorer 9 — versions Windows Server 2008 for 32-bit Systems Service Pack 2, Windows Server 2008 for x64-based Systems Service Pack 2
- Microsoft Windows_10 — versions 1607, 1703, 1709
- Microsoft Windows_7
- Microsoft Windows_8.1
- Microsoft Windows_rt_8.1
- Microsoft Windows_server_2008
- Microsoft Windows_server_2012 — versions r2
Weakness classification (CWE)
Public proof-of-concept exploits
References
- secure@microsoft.com (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)
- secure@microsoft.com (x_refsource_CONFIRM, Patch, Vendor Advisory)
- secure@microsoft.com (Exploit, VDB Entry, Third Party Advisory, exploit, x_refsource_EXPLOIT-DB)
Frequently asked questions
- What is CVE-2018-8631?
- CVE-2018-8631 is a high-severity vulnerability in Microsoft Internet_explorer, classified under Out-of-bounds Write. CVSS score: 7.5/10. Published 2018-12-12.
- How severe is CVE-2018-8631?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2018-8631 known to be exploited?
- 10 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.