CVE-2023-23392
CVE-2023-23392 is a critical-severity vulnerability in Microsoft Windows 11 21h2 with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-416.
Key facts
- Severity: Critical (CVSS 3.x base score 9.8)
- EPSS exploit prediction: 2% (74th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-416
- Affected product: Microsoft Windows 11 21h2
- Published:
- Last modified:
Description
HTTP Protocol Stack Remote Code Execution Vulnerability
Frequently asked questions
- What is CVE-2023-23392?
- HTTP Protocol Stack Remote Code Execution Vulnerability
- How severe is CVE-2023-23392?
- CVE-2023-23392 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2023-23392 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (74th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2023-23392?
- CVE-2023-23392 primarily affects Microsoft Windows 11 21h2. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2023-23392?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
- When was CVE-2023-23392 published?
- CVE-2023-23392 was published on 2023-03-14 and last updated on 2026-06-17.
References
Affected products (3)
- cpe:2.3:o:microsoft:windows_11_21h2:*:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_11_22h2:*:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_server_2022:-:*:*:*:*:*:*:*
More vulnerabilities in Microsoft Windows 11 21h2
- CVE-2024-38199 — Critical (CVSS 9.8): Windows Line Printer Daemon (LPD) Service Remote Code Execution Vulnerability
- CVE-2024-38140 — Critical (CVSS 9.8): Windows Reliable Multicast Transport Driver (RMCAST) Remote Code Execution Vulnerability
- CVE-2024-38063 — Critical (CVSS 9.8): Windows TCP/IP Remote Code Execution Vulnerability
- CVE-2024-30080 — Critical (CVSS 9.8): Microsoft Message Queuing (MSMQ) Remote Code Execution Vulnerability
- CVE-2023-36397 — Critical (CVSS 9.8): Windows Pragmatic General Multicast (PGM) Remote Code Execution Vulnerability
- CVE-2023-36028 — Critical (CVSS 9.8): Microsoft Protected Extensible Authentication Protocol (PEAP) Remote Code Execution Vulnerability
All CVEs affecting Microsoft Windows 11 21h2 →
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