Improper input validation in Microsoft .Net Framework
CVE-2018-8421
A remote code execution vulnerability exists when Microsoft .NET Framework processes untrusted input, aka ".NET Framework Remote Code Execution Vulnerability." This affects Microsoft .NET Framework 4.6, Microsoft .NET Framework 3.5, Micros…
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
EPSS: 0.289 (97.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Microsoft .Net Framework — versions 2.0 Service Pack 2 on Windows Server 2008 for 32-bit Systems Service Pack 2, 2.0 Service Pack 2 on Windows Server 2008 for Itanium-Based Systems Service Pack 2, 2.0 Service Pack 2 on Windows Server 2008 for x64-based Systems Service Pack 2
- Microsoft .Net_framework — versions 2.0, 3.0, 3.5
- Microsoft Windows_10 — versions 1607, 1703, 1709
- Microsoft Windows_7
- Microsoft Windows_8.1
- Microsoft Windows_rt_8.1
- Microsoft Windows_server — versions 1709, 1803
- Microsoft Windows_server_2008 — versions r2
- Microsoft Windows_server_2012 — versions r2
- Microsoft Windows_server_2016
Weakness classification (CWE)
Public proof-of-concept exploits
References
- secure@microsoft.com (x_refsource_CONFIRM, Patch, Vendor Advisory)
- secure@microsoft.com (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_SECTRACK)
- secure@microsoft.com (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)
Frequently asked questions
- What is CVE-2018-8421?
- CVE-2018-8421 is a critical-severity vulnerability in Microsoft .Net Framework, classified under Improper Input Validation. CVSS score: 9.8/10. Published 2018-09-13.
- How severe is CVE-2018-8421?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2018-8421 known to be exploited?
- 14 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.