CVE-2025-24043
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 · uneditedImproper verification of cryptographic signature in .NET allows an authorized attacker to execute code over a network.
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 confidenceThis is a cryptographic signature verification vulnerability in .NET where the runtime improperly validates signatures, allowing an authenticated attacker to execute arbitrary code remotely. The flaw enables bypass of code signing checks, potentially letting malicious assemblies or payloads execute without proper validation.
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< 1.2502.25002.0CVSS 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
- High
- Privileges
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
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.
-
Verify Windbg installationCheck for Windbg installation by searching for 'windbg.exe' in common installation directories such as C:\Program Files\Windows Kits\10\Debuggers\x64\ or C:\Program Files (x86)\Windows Kits\10\Debuggers\x64\, or check the Windows registry under HKLM\SOFTWARE\Microsoft\Windows Kits\Installed ProductsAffected if Windbg is found on the system
-
Retrieve Windbg versionRight-click on windbg.exe, select Properties, then navigate to the Details tab to view the Product version, or run 'windbg.exe -version' from command prompt if supportedAffected if The version displayed is lower than 1.2502.25002.0
-
Confirm affected architecture if multiple installedIf both x64 and x86 versions of Windbg are installed, repeat the version check for each windbg.exe found in the respective Debuggers subfoldersAffected if Any installed Windbg instance is below version 1.2502.25002.0
A system is affected if Microsoft Windbg version 1.2502.25002.0 or higher is not installed, as versions below this contain the cryptographic signature validation flaw that could allow code execution.
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 · scoped1.2502.25002.0
Apply Microsoft security patches for .NET once available; ensure code signing validation is enforced and not disabled in application configurations; review and validate all cryptographic signature verification implementations in .NET applications.
Windbg version 1.2502.25002.0 or later
- Open Microsoft Store on Windows
- Search for "WinDbg Preview" or "Windbg"
- Click Update if an update is available, or reinstall to get version 1.2502.25002.0 or later
- Alternatively, download the latest Windows SDK which includes Windbg from https://developer.microsoft.com/en-us/windows/downloads/windows-sdk/
- Verify the installed version by opening Windbg and checking Help > About WinDbg - it should show version 1.2502.25002.0 or higher
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation6.0 h
- Implementation12.0 h
- Testing10.0 h
- Review / QA6.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $9,504.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-24043 — 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-2025-24043 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
Be the first to add a field note for this CVE — a mitigation you’ve verified, a version caveat, or a link to a working fix. Sign in above to contribute.
A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.
- 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