How severe is CVE-2023-21536?

CVE-2023-21536 has a CVSS 3.x base score of 4.7, rated medium severity. It is exploitable over local access with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2023-21536 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (32nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-21536?

CVE-2023-21536 primarily affects Microsoft Windows 10 1809. In total, 17 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-21536?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2023-21536 published?

CVE-2023-21536 was published on 2023-01-10 and last updated on 2026-06-17.

CVE-2023-21536

CVE-2023-21536 is a medium-severity vulnerability in Microsoft Windows 10 1809 with a CVSS 3.x base score of 4.7. 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-362.

Key facts

Severity: Medium (CVSS 3.x base score 4.7)
EPSS exploit prediction: 0% (32nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-362
Affected product: Microsoft Windows 10 1809
Published: 2023-01-10
Last modified: 2026-06-17

Description

Event Tracing for Windows Information Disclosure Vulnerability

Frequently asked questions

What is CVE-2023-21536?: Event Tracing for Windows Information Disclosure Vulnerability
How severe is CVE-2023-21536?: CVE-2023-21536 has a CVSS 3.x base score of 4.7, rated medium severity. It is exploitable over local access with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2023-21536 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (32nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-21536?: CVE-2023-21536 primarily affects Microsoft Windows 10 1809. In total, 17 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-21536?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-21536 published?: CVE-2023-21536 was published on 2023-01-10 and last updated on 2026-06-17.

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21536

Affected products (17)

cpe:2.3:o:microsoft:windows_10_1809:-:*:*:*:*:*:arm64:*
cpe:2.3:o:microsoft:windows_10_1809:-:*:*:*:*:*:x64:*
cpe:2.3:o:microsoft:windows_10_1809:-:*:*:*:*:*:x86:*
cpe:2.3:o:microsoft:windows_10_20h2:-:*:*:*:*:*:arm64:*
cpe:2.3:o:microsoft:windows_10_20h2:-:*:*:*:*:*:x64:*
cpe:2.3:o:microsoft:windows_10_20h2:-:*:*:*:*:*:x86:*
cpe:2.3:o:microsoft:windows_10_21h2:-:*:*:*:*:*:arm64:*
cpe:2.3:o:microsoft:windows_10_21h2:-:*:*:*:*:*:x64:*
cpe:2.3:o:microsoft:windows_10_21h2:-:*:*:*:*:*:x86:*
cpe:2.3:o:microsoft:windows_10_22h2:-:*:*:*:*:*:arm64:*
cpe:2.3:o:microsoft:windows_10_22h2:-:*:*:*:*:*:x64:*
cpe:2.3:o:microsoft:windows_10_22h2:-:*:*:*:*:*:x86:*
cpe:2.3:o:microsoft:windows_11_21h2:-:*:*:*:*:*:arm64:*
cpe:2.3:o:microsoft:windows_11_22h2:-:*:*:*:*:*:arm64:*
cpe:2.3:o:microsoft:windows_11_22h2:-:*:*:*:*:*:x64:*
cpe:2.3:o:microsoft:windows_server_2019:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2022:-:*:*:*:*:*:*:*

More vulnerabilities in Microsoft Windows 10 1809

CVE-2025-49708 — Critical (CVSS 9.9): Use after free in Microsoft Graphics Component allows an authorized attacker to elevate privileges over a network.
CVE-2026-47291 — Critical (CVSS 9.8): Integer overflow or wraparound in Windows HTTP.sys allows an unauthorized attacker to execute code over a network.
CVE-2026-44815 — Critical (CVSS 9.8): Stack-based buffer overflow in Windows DHCP Client allows an unauthorized attacker to execute code over a network.
CVE-2026-33824 — Critical (CVSS 9.8): Double free in Windows IKE Extension allows an unauthorized attacker to execute code over a network.
CVE-2025-60724 — Critical (CVSS 9.8): Heap-based buffer overflow in Microsoft Graphics Component allows an unauthorized attacker to execute code over a…
CVE-2025-53766 — Critical (CVSS 9.8): Heap-based buffer overflow in Windows GDI+ allows an unauthorized attacker to execute code over a network.

All CVEs affecting Microsoft Windows 10 1809 →

Other CWE-362 (Race Condition) vulnerabilities

CVE-2022-27626 — Critical (CVSS 10.0): A vulnerability regarding concurrent execution using shared resource with improper synchronization ('Race Condition')…
CVE-2015-8556 — Critical (CVSS 10.0): Local privilege escalation vulnerability in the Gentoo QEMU package before 2.5.0-r1.
CVE-2014-0703 — Critical (CVSS 10.0): Cisco Wireless LAN Controller (WLC) devices 7.4 before 7.4.110.0 distribute Aironet IOS software with a race condition…
CVE-2010-1228 — Critical (CVSS 10.0): Multiple race conditions in the sandbox infrastructure in Google Chrome before 4.1.249.1036 have unspecified impact and…
CVE-2008-6598 — Critical (CVSS 10.0): Multiple race conditions in WANPIPE before 3.3.6 have unknown impact and attack vectors related to "bri restart logic."
CVE-2026-46137 — Critical (CVSS 9.8): In the Linux kernel, the following vulnerability has been resolved: mptcp: pm: ADD_ADDR rtx: fix potential…

Browse all CWE-362 (Race Condition) vulnerabilities →