CVE-2026-70007
.NET Framework Remote Code Execution Vulnerability
No known exploitation. No EPSS score yet. Fixed versions are out.
What to do
Find your product and version, then upgrade to the build on the right.
- Microsoft .NET 10.0Affected: ≥ 10.0.0, < 10.0.13Upgrade to: 10.0.13Stated by: CVE record
- Microsoft .NET 11.0Affected: ≥ 11.0.0, < 11.0.0-rc.2Upgrade to: 11.0.0-rc.2Stated by: CVE record
- Microsoft .NET 8.0Affected: ≥ 8.0.0, < 8.0.32Upgrade to: 8.0.32Stated by: CVE record
- Microsoft .NET 9.0Affected: ≥ 9.0.0, < 9.0.21Upgrade to: 9.0.21Stated by: CVE record
- Microsoft .NET Framework 3.5Affected: ≥ 3.5.0, < 2.0.50727.8987 AND 3.0.30729.8982Upgrade to: 2.0.50727.8987 AND 3.0.30729.8982Stated by: CVE record
Versions as the sources state them. 9 more products have version data. Full version matrix after sign-in
What it is
From the CVE record
Out-of-bounds write in .NET Framework allows an unauthorized attacker to execute code over a network.
In plain language
No plain-language summary for this CVE yet.
Exploitation
Where each signal puts this CVE on the scale from published to confirmed exploited.
- CISA KEV
Not in the catalog. CISA has not confirmed exploitation.
- Public exploits
No public exploit or proof of concept found in the sources we track.
- EPSS
No EPSS score yet. New CVEs are usually scored within a few days.
Lifecycle
5 events over 0 days, from the signal feeds we watch.
- Publishedweakness classified, att&ck mapped, record updated, record updated
Affected products
- .NET 10.0Operating Systems / windows
- .NET 11.0Operating Systems / windows
- .NET 8.0OSS Libraries / generic-library
- .NET 9.0OSS Libraries / generic-library
- Microsoft .NET Framework 3.5OSS Libraries / generic-library
- Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2Operating Systems / windows
- Microsoft .NET Framework 3.5 AND 4.7.2OSS Libraries / generic-library
- Microsoft .NET Framework 3.5 AND 4.8OSS Libraries / generic-library
And 6 more affected products. See all after sign-in
Technical detail
CVSS 3.1 vector
Open in the CVSS calculatorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Scored 8.8 by NVD.
How it is reached
- Attack Vector NetworkExploitable remotely over the network without any special conditions
- Attack Complexity LowNo special conditions — the attack can be reliably reproduced
- Privileges Required NoneNo authentication required — anyone can exploit this
- User Interaction RequiredA user must click a link, open a file, or perform some action
Scope
- Scope UnchangedImpact is limited to the vulnerable component itself
Impact if exploited
- Confidentiality HighTotal information disclosure — all data in the component is compromised
- Integrity HighTotal loss of integrity — attacker can modify any data in the component
- Availability HighTotal denial of service — the component is completely unavailable
Weaknesses
ATT&CK techniques
Mapped from the weaknesses above (CWE to ATT&CK), not observed in attacks.
- Initial AccessT1190Exploit Public-Facing Applicationhigh confidence
- Privilege EscalationT1068Exploitation for Privilege Escalationhigh confidence
Sources
Watch the software you run.
My Stack ranks new CVEs for your products by real-world exploitation, so the next serious one reaches you without reading every advisory.
We'll flag the next CVE, public exploit or patch for .NET 10.0, not every advisory.
A free account adds
- The full version matrix and every affected product
- Exploit links, proofs of concept and Metasploit modules
- Email alerts for the products you watch
- The same data over REST API, MCP and CLI