Recorded 15 Oct 2026 at 01:07 UTC. This is what ChangeIntel recorded, including the title, summary, facts and links. It is not a statement of the source's current position. See the latest record.
.NET Remote Code Execution Vulnerability
Deserialization of untrusted data in .NET allows an unauthorized attacker to execute code over a network.
What it said
- CVE
- CVE-2026-87697
- Severity
- Important
- CVSS base score
- 8.8
- CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
- Impact
- Remote Code Execution
- Exploitation detected
- Not reported by MSRC
- Publicly disclosed
- No
- Exploitability
- Exploitation Less Likely
- Component
- .NET
- Weakness
- CWE-502: Deserialization of Untrusted Data
- Issued by
- Microsoft
- Customer action
- Required: apply the update
- Affected products
- .NET 10.0 installed on Windows, .NET 11.0 installed on Windows, .NET 8.0 installed on Windows, .NET 9.0 installed on Windows, Microsoft Visual Studio 2022 version 17.14, Microsoft Visual Studio 2026 version 18.10
- Updates that fix it
- No KB listed
- CISA KEV
- Not listed in the collected catalog
- EPSS
- 0.8%; scored 14 Oct 2026
- Public exploit code
- No Nuclei template listed
- Published
- 13 Oct 2026 07:00 UTC
- Last revised
- 13 Oct 2026 07:00 UTC
- Revision note
- Information published.
Recorded links
Source evidence when recorded
- Microsoft security releases
- Complete at observationRead 15 Oct 2026 at 01:07 UTC
- CISA KEV
- Complete at observationRead 15 Oct 2026 at 01:07 UTC
- FIRST EPSS
- Complete at observationRead 15 Oct 2026 at 01:07 UTC
- Public exploit code
- Complete at observationRead 15 Oct 2026 at 01:07 UTC
Coverage describes the sources at this observation. A complete read then does not establish their current position.
What changed
First observed 14 Oct 2026- 15 Oct 2026 · 01:07:54 UTC EPSSNot scored → 0.8%; scored 14 Oct 2026
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