CVE-2025-53136: CVE-2025-53136: Exposure of sensitive information to an unauthorized actor in Windows NT OS Kernel allows …

What it is

Exposure of sensitive information to an unauthorized actor in Windows NT OS Kernel allows an authorized attacker to disclose information locally.

Exploitation evidence

First exploit evidence seen: 2026-01-13 (earliest date across the sources below).

Exploited in the wild

No source on this site lists in-the-wild exploitation yet (CISA KEV, VulnCheck KEV).

Public exploit code

GitHub proof-of-concept repositories

1 public repositories from 1 accounts, first seen 2026-01-13. Most starred: nu1lptr0/CVE-2025-53136 (35 stars), view repository.

Verify before running: public PoCs can be malicious. Read the code and only run it in an isolated lab. A PoC means exploit code is public, not that this CVE is exploited in the wild.

Sources: nomi-sec/PoC-in-GitHub.

How to fix it

Fixed versions

• microsoft windows 10 1507: upgrade to 10.0.10240.21100 or later
• microsoft windows 10 1607: upgrade to 10.0.14393.8330 or later
• microsoft windows 10 1809: upgrade to 10.0.17763.7678 or later
• microsoft windows 10 21h2: upgrade to 10.0.19044.6216 or later
• microsoft windows 10 22h2: upgrade to 10.0.19045.6216 or later
• microsoft windows 11 22h2: upgrade to 10.0.22621.5768 or later
• microsoft windows 11 23h2: upgrade to 10.0.22631.5768 or later
• microsoft windows 11 24h2: upgrade to 10.0.26100.4851 or later
• microsoft windows server 2016: upgrade to 10.0.14393.8330 or later
• microsoft windows server 2019: upgrade to 10.0.17763.7678 or later
• microsoft windows server 2022: upgrade to 10.0.20348.3989 or later
• microsoft windows server 2022 23h2: upgrade to 10.0.25398.1791 or later
• microsoft windows server 2025: upgrade to 10.0.26100.4851 or later

Derived from the NVD CPE configuration (versionEndExcluding / versionEndIncluding). Always confirm with the vendor advisory.

Vendor advisories and patches

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-53136 (Vendor Advisory)

MITRE ATT&CK mitigations for this chain

• M1057 Data Loss Prevention (for T1005) : Data loss prevention can restrict access to sensitive data and detect sensitive data that is unencrypted.

Detection Generic guidance

• Collection: Watch for bulk reads of databases, file shares or mailboxes by the affected service.

Response checklist Generic guidance

1. Inventory: find every instance of the affected product and version (include internet-facing and forgotten ones).
2. Patch or mitigate per the vendor advisory; if you cannot patch, remove internet exposure or apply the vendor workaround.
3. Assume compromise if the system was exposed before patching: hunt for the indicators in the advisory and review logs back to the disclosure date.
4. Rotate credentials and secrets stored on or used by the affected system if compromise cannot be ruled out.