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CVE-2026-92707 is a medium severity vulnerability in .NET involving improperly controlled sequential memory allocation that allows an unauthorized attacker to cause a denial of service over a network. The issue affects multiple Ubuntu-distributed .NET versions prior to specific patched releases. Official patches have been released by Ubuntu to address this vulnerability.

This vulnerability in .NET arises from improperly controlled sequential memory allocation, which can be exploited by an unauthorized attacker to cause a denial of service (DoS) condition over a network. The vulnerability affects various versions of .NET distributed with Ubuntu 22.04 LTS, 24.04 LTS, 26.04 LTS, and 26.10 releases. Ubuntu has released updated .NET package versions (e.g., .NET 8 updated to 8.0.32, .NET 10 updated to 10.0.13, and .NET 11 updated to 11.0.0~rc2) that include fixes for this and other security issues. The vulnerability has a CVSS 3.1 base score of 5.3 (medium severity) with vector AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L, indicating network attack vector, low attack complexity, no privileges or user interaction required, no confidentiality or integrity impact, but availability impact (denial of service). There are no known exploits in the wild. The vendor advisory from Ubuntu confirms the availability of patches and recommends updating to the fixed package versions.

CVE-2026-92707 is a medium severity vulnerability in .NET involving improperly controlled sequential memory allocation that allows an unauthorized attacker to cause a denial of service over a network. The issue affects multiple Ubuntu-distributed .NET versions prior to specific patched releases. Off

Dotnet6: Improperly controlled sequential memory allocation in .NET allows an unauthorized attacker to deny service over a network. (CVE-2026-92707)

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