Security Digest · Vulnerability record
CVE-2024-38063: Windows TCP/IP Remote Code Execution Vulnerability
Windows TCP/IP Remote Code Execution Vulnerability
CVSS 9.8 Critical EPSS 70.6% · p99 Patch this week
Should you act?
High exploit likelihood
EPSS ranks it in the top 5% of all CVEs for likely exploitation in the next 30 days. This signal is computed from CISA KEV, EPSS and CVSS data; it is not an editorial verdict.
- Not in CISA KEV, but CISA’s SSVC assessment records a public proof-of-concept, so attack code exists.
- EPSS 70.6%, percentile 99: FIRST’s model estimates a 70.6% chance of exploitation activity in the next 30 days, higher than 99% of all scored CVEs (very high). EPSS is a probability, not a verdict.
- Remotely reachable with no login and no user interaction. If the vulnerable service is exposed to the internet, prioritize it.
- Editorial verdict: Patch this week. Windows TCP/IP IPv6 Remote Code Execution (CVE-2024-38063) — Serious on paper and worth patching promptly, but there is no known in-the-wild exploitation, public code is a flaky crash-oriented proof of concept, and any machine on August 2024 or later cumulative updates is already fixed.
What it is
Windows TCP/IP Remote Code Execution Vulnerability
Weakness type: CWE-191.
Product: Microsoft Windows 10 Version 1809 · Assigned by: microsoft · Published: 2024-08-13
Affected and fixed versions
| Vendor | Product | Affected versions (per CVE record) |
|---|---|---|
| Microsoft | Windows 10 Version 1809 | 10.0.17763.0 < 10.0.17763.6293 |
| Microsoft | Windows Server 2019 | 10.0.17763.0 < 10.0.17763.6293 |
| Microsoft | Windows Server 2019 (Server Core installation) | 10.0.17763.0 < 10.0.17763.6293 |
| Microsoft | Windows Server 2022 | 10.0.20348.0 < 10.0.20348.2700 |
| Microsoft | Windows 11 version 21H2 | 10.0.0 < 10.0.22000.3197 |
| Microsoft | Windows 10 Version 21H2 | 10.0.19043.0 < 10.0.19044.4780 |
| Microsoft | Windows 11 version 22H2 | 10.0.22621.0 < 10.0.22621.4037 |
| Microsoft | Windows 10 Version 22H2 | 10.0.19045.0 < 10.0.19045.4780 |
| Microsoft | Windows 11 version 22H3 | 10.0.22631.0 < 10.0.22631.4037 |
| Microsoft | Windows 11 Version 23H2 | 10.0.22631.0 < 10.0.22631.4037 |
Severity scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| microsoft | 3.1 | 9.8 Critical | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C |
- Attack vector: network (remotely reachable)
- Attack complexity: low
- Privileges required: none (no login)
- User interaction: none
- Scope: unchanged
CVSS measures how bad a flaw is if exploited, not how likely exploitation is. Read it next to the exploitation data below.
Exploitation and urgency
- CISA KEV: not listed (no confirmed in-the-wild exploitation known to CISA).
- CISA SSVC assessment: exploitation poc, automatable yes, technical impact total.
- FIRST EPSS (model of 2026-10-21): 70.56% probability of exploitation activity in the next 30 days; percentile 99.
Timeline
- — CVE record published by microsoft
- — erroneo.us brief: Windows TCP/IP IPv6 Remote Code Execution (CVE-2024-38063)
- — CVE record last updated
Sources and references
Original sources first. Version and fix details should always be confirmed against the vendor or project advisory.
Vendor and project advisories, patches
- Windows TCP/IP Remote Code Execution Vulnerability msrc.microsoft.com
Vulnerability records
- CVE.org record CVE-2024-38063 cve.org
- NVD entry CVE-2024-38063 nvd.nist.gov