Microsoft Windows Information Disclosure Vulnerability

Exposure of sensitive information to an unauthorized actor in Desktop Windows Manager allows an authorized attacker to disclose information locally.

CheckOps priority index

3.6/10 Patch within 7 days

Severity5.5

Probability0.7

Exploitation2/5

Severity = CVSS. Probability = EPSS (FIRST). Exploitation = public signals: KEV, EUVD, ransomware, EPSS above 10 %, no account required.

EPSS · today 7.5% higher than 94.5% of CVEs

CVSS 3.1 5.5 AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:

Exploited for 294 days 13 Jan 2026

CISA due date 03 Feb 2026 for US federal agencies

Exploitation probability EPSS · FIRST

EPSS probability (%)Percentile among all CVEs

Exploitation signals 2 / 5

KEV catalog (CISA)13 Jan 2026
Exploited in EUVD (ENISA)13 Jan 2026
Used by ransomwareno
EPSS above 10 %7.5%
No account, over the networkno

What to do

Fix

Apply the vendor’s fix as soon as it is available.

CISA guidance: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Meanwhile

Take the service off the internet or restrict access to it, watch the logs and look for signs of compromise.

Manufacturers (CRA)

Exploited vulnerability in your product: early warning to ENISA within 24 h, then notification within 72 h (Article 14 of the Cyber Resilience Act). The CRA explained

Affected products

Windows Server 2012 R2 (Server Core installation)Windows 10 Version 22H2Windows Server 2016 (Server Core installation)Windows Server 2012 (Server Core installation)Windows 10 Version 21H2Windows Server 2022, 23H2 Edition (Server Core installation)Windows 11 Version 25H2Windows Server 2022Windows 11 Version 23H2Windows 11 Version 24H2Windows Server 2016Windows Server 2025Windows 10 Version 1607Windows Server 2012 R2Windows Server 2019Windows Server 2012Windows Server 2019 (Server Core installation)Windows 10 Version 1809Windows Server 2025 (Server Core installation)Windows

Affected versions

6.3.9600.0 <6.3.9600.22968
10.0.19045.0 <10.0.19045.6809
10.0.14393.0 <10.0.14393.8783
6.2.9200.0 <6.2.9200.25868
10.0.19044.0 <10.0.19044.6809
10.0.25398.0 <10.0.25398.2092
10.0.26200.0 <10.0.26200.7623
10.0.20348.0 <10.0.20348.4648
10.0.22631.0 <10.0.22631.6491
10.0.26100.0 <10.0.26100.7623
10.0.26100.0 <10.0.26100.32230
10.0.17763.0 <10.0.17763.8276

Weaknesses (CWE)

CWE-200

Open source packages OSV

Affected libraries according to OSV, with fixed versions.

Timeline

13 Jan 2026
Published
13 Jan 2026
Exploitation reported (ENISA)
13 Jan 2026
Added to the KEV catalog
03 Feb 2026
CISA remediation due date

References

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