---
id: "CVE-2026-35683"
page: "https://infrastack.ai/live/CVE-2026-35683"
kind: "vulnerability"
aliases: ["CVE-2026-35683"]
title: "Intel Multi-Buffer Crypto for IPsec: local user code can crash the system"
severity: "medium"
cvss: 5.9
epss: null
exploited: false
status: "open"
category: "infrastructure"
products: []
ecosystems: []
tags: ["infrastructure", "intel", "ipsec", "linux", "local-access"]
not_affected_if: ["library-not-installed", "no-local-untrusted-users"]
published_at: "2026-11-10T17:17:42+00:00"
first_seen_at: "2026-11-10T17:22:42+00:00"
updated_at: "2026-11-10T17:24:18+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-35683", "first_seen_at": "2026-11-10T17:22:42+00:00"}]
exploit_sources: []
---

# Intel Multi-Buffer Crypto for IPsec: local user code can crash the system

Link for people: https://infrastack.ai/live/CVE-2026-35683 (this .md is for agents)

Intel's Multi-Buffer Crypto library for IPsec has an out-of-bounds write that a local user-mode program can trigger. The result is a denial of service, with possible integrity impact per the CVSS vector.

_Summary, check and fix written by a model from the sources; labelled as such._

## Timeline

- 2026-11-10T17:22:42+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-35683

## From the sources

Out-of-bounds write for some Intel(R) Multi-Buffer Crypto for IPSec within Ring 3: User Applications may allow a denial of service. Unprivileged software adversary with an unauthenticated user combined with a low complexity attack may enable denial of service. This result may potentially occur via local access when attack requirements are present without special internal knowledge and requires no user interaction. The potential vulnerability may impact the confidentiality (none), integrity (low) and availability (high) of the vulnerable system, resulting in subsequent system confidentiality (none), integrity (none) and availability (none) impacts.

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