CVE-2026-62872 .NET Framework Elevation of Privilege Vulnerability
High 8.8
Published
Updated
Check this codebase for CVE-2026-62872 and fix it if it is affected.
What it is: CVE-2026-62872 is a high-severity vulnerability in Microsoft .Net Framework, published on 11 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-62872 in the wild and no public exploit code.
Affected product: Microsoft .Net Framework. No package-level version data is available, so check the vendor advisory linked from the reference page.
Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.
Reference: https://insights.sbomify.com/CVE-2026-62872/ (Markdown: https://insights.sbomify.com/CVE-2026-62872/index.md)
An authorized attacker can elevate privileges over the network due to incorrect authorization in .NET Framework.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-62872?
CVE-2026-62872 is a high-severity vulnerability in Microsoft .Net Framework, published on 11 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Incorrect authorization in .NET Framework allows an authorized attacker to elevate privileges over a network.
Weakness: CWE-863
Which versions are affected by CVE-2026-62872?
It affects 1 product.
Products include Microsoft .Net Framework.
How do I fix CVE-2026-62872?
No fix has been published for CVE-2026-62872 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-62872 being exploited?
There is no known exploitation of CVE-2026-62872 in the wild and no public exploit code.
Other vulnerabilities in Microsoft .Net Framework
Sources
Also known as GHSA-43g4-v893-w7hq.