CVE-2026-57982
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedUse of uninitialized resource in Windows RDP allows an authorized attacker to disclose information over a network.
In the news
Third-party coverage- Microsoft July 2026 Patch Tuesday fixes massive 570 flaws, 3 zero-days
- Microsoft CVE Summary - Bleeping Computer
Surfaced from public web coverage — external links open in a new tab.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · moderate confidenceA vulnerability in Windows Remote Desktop Protocol (RDP) involves the use of an uninitialized resource, which could allow an authorized attacker to potentially disclose sensitive information over a network.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data< 10.0.14393.9339< 10.0.17763.9020< 10.0.19044.7548< 10.0.19045.7548< 10.0.26100.8875< 10.0.26200.8875< 10.0.28000.2525all versions= r2CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Privileges
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- None
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Check installed Windows versionRun 'winver' from command prompt or check the registry key 'HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion' for the 'CurrentBuild' and 'DisplayVersion' valuesAffected if The displayed version falls within any of the affected ranges: Windows 10 1607 < 10.0.14393.9339, Windows 10 1809 < 10.0.17763.9020, Windows 10 21h2 < 10.0.19044.7548, Windows 10 22h2 < 10.0.19045.7548, Windows 11 24h2 < 10.0.26100.8875, Windows 11 25h2 < 10.0.26200.8875, Windows 11 26h1 < 10.0.2800
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Confirm RDP is enabledCheck registry key 'HKLM\SYSTEM\CurrentControlSet\Control\Terminal Server' - verify the 'fDenyTSConnections' value is set to 0, or run 'Get-Service TermService' in PowerShell to check if the Remote Desktop Services service is runningAffected if RDP is enabled (fDenyTSConnections = 0) or the TermService service is running, creating the attack surface for this vulnerability
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Verify network-level authentication requirementCheck registry key 'HKLM\SYSTEM\CurrentControlSet\Control\Terminal Server\WinStations\RDP-Tcp' for the 'UserAuthentication' value (1 = NLA required, 0 = NLA not required)Affected if NLA is not required (UserAuthentication = 0), which would make exploitation easier, though the vulnerability exists regardless of NLA status on affected versions
You are affected if RDP is enabled and your Windows version matches any of the affected builds listed, regardless of NLA configuration, with Windows Server 2012/2012 R2 being affected at all versions.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
dbcve · scoped10.0.14393.933910.0.17763.902010.0.19044.7548
Apply Microsoft security updates for Windows RDP when available; restrict RDP access to authorized users and networks using network-level authentication and firewall rules.
Windows 10 1607 to build 10.0.14393.9339 or later; Windows 10 1809 to build 10.0.17763.9020 or later; Windows 10 21h2 to build 10.0.19044.7548 or later; Windows 10 22h2 to build 10.0.19045.7548 or later; Windows 11 24h2 to build 10.0.26100.8875 or later; Windows 11 25h2 to build 10.0.26200.8875 or l
- 1. Identify the exact Windows version and build number by running 'winver' or 'systeminfo' in Command Prompt
- 2. For Windows 10 (1607, 1809, 21h2, 22h2): Use Windows Update to install the cumulative update that includes build 10.0.14393.9339, 10.0.17763.9020, 10.0.19044.7548, or 10.0.19045.7548 respectively, or manually download the update from Microsoft Update Catalog
- 3. For Windows 11 (24h2, 25h2, 26h1): Use Windows Update to install the cumulative update that includes build 10.0.26100.8875, 10.0.26200.8875, or 10.0.28000.2525 respectively, or manually download from Microsoft Update Catalog
- 4. For Windows Server 2012 R2: This version has no patch available; migrate to a supported Windows Server version (2016, 2019, 2022, or 2025)
- 5. After installation, restart the affected system
- 6. Verify the installed build matches or exceeds the fixed version by running 'winver'
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation2.0 h
- Implementation4.0 h
- Testing2.0 h
- Review / QA1.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-57982 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2026-57982 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
- No spam, self-promotion, credentials, or personal data