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CVE-2026-42908

Windows Remote Desktop Protocol (RDP) Information Disclosure Vulnerability

HIGH
7.5
CVSS Score
Published: June 9, 2026 at 05:06 PM UTC
Updated: July 23, 2026 at 07:32 PM UTC
14 products affected across 1 vendorWindows Server 2016Windows Server 2019Windows Server 2012

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Severity
HIGH7.5
Exploit prediction
EPSS 0.9%
SSVC
No known exploit

Description

Out-of-bounds read in Windows RDP allows an unauthorized attacker to disclose information over a network.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Windows 10 1607· Microsoft
95%
v < 10.0.14393.923410.0.14393.0 ≤ v < 10.0.14393.923410.0.14393.0
Affected range stops below 10.0.14393.9234, so it looks safe — our inference, not a vendor statement
Windows 10 1809· Microsoft
95%
v < 10.0.17763.888010.0.17763.0 ≤ v < 10.0.17763.888010.0.17763.0
Affected range stops below 10.0.17763.8880, so it looks safe — our inference, not a vendor statement
Windows 10 21H2· Microsoft
95%
v < 10.0.19044.741710.0.19044.0 ≤ v < 10.0.19044.741710.0.19044.0
Affected range stops below 10.0.19044.7417, so it looks safe — our inference, not a vendor statement
Windows 10 22H2· Microsoft
95%
v < 10.0.19045.741710.0.19045.0 ≤ v < 10.0.19045.741710.0.19045.0
Affected range stops below 10.0.19045.7417, so it looks safe — our inference, not a vendor statement
Windows 11 23H2· Microsoft
95%
v < 10.0.22631.721910.0.22631.0 ≤ v < 10.0.22631.721910.0.22631.0
Affected range stops below 10.0.22631.7219, so it looks safe — our inference, not a vendor statement
Windows 11 24H2· Microsoft
95%
v < 10.0.26100.865510.0.26100.0 ≤ v < 10.0.26100.865510.0.26100.0
Affected range stops below 10.0.26100.8655, so it looks safe — our inference, not a vendor statement
Windows 11 25H2· Microsoft
95%
v < 10.0.26200.865510.0.26200.0 ≤ v < 10.0.26200.865510.0.26200.0
Affected range stops below 10.0.26200.8655, so it looks safe — our inference, not a vendor statement
Windows 11 26H1· Microsoft
95%
v < 10.0.28000.226910.0.28000.0 ≤ v < 10.0.28000.226910.0.28000.0
Affected range stops below 10.0.28000.2269, so it looks safe — our inference, not a vendor statement
Windows App· Microsoft
95%
v < 2.0.1193.01.00 ≤ v < 2.0.1193.01.00
Affected range stops below 2.0.1193.0, so it looks safe — our inference, not a vendor statement
Windows Server 2012· Microsoft
95%
6.2.9200.0 ≤ v < 6.2.9200.261326.3.9600.0 ≤ v < 6.3.9600.232286.2.9200.06.3.9600.0r2
Affected range stops below 6.2.9200.26132, so it looks safe — our inference, not a vendor statement
Affected range stops below 6.3.9600.23228, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

Vendor AdvisoryPatch
Source: [email protected]
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-42908

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.5HIGHmicrosoft
Vector?

Quick Info

StatusANALYZED
CWE
CWE-125

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