---
id: "CVE-2026-101401"
kind: "vulnerability"
aliases: ["CVE-2026-101401"]
title: "Oracle Siebel Marketing: local attacker can cause partial denial of service"
severity: "low"
cvss: 2.9
epss: null
exploited: false
status: "open"
category: "other"
products: []
ecosystems: []
tags: ["crm", "oracle", "other", "self-hosted", "siebel"]
not_affected_if: ["no-local-logon", "not-siebel-marketing"]
published_at: "2026-10-20T22:17:48+00:00"
first_seen_at: "2026-10-23T21:57:21+00:00"
updated_at: "2026-10-25T04:47:55+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-101401", "first_seen_at": "2026-10-23T21:57:21+00:00"}]
---

# Oracle Siebel Marketing: local attacker can cause partial denial of service

Oracle Siebel CRM's Marketing component, versions 17.0 through 26.9, has a flaw that lets an unauthenticated attacker with logon to the host running it partly disrupt the service. The sources describe only an availability impact (CVSS 2.9, low), with no confidentiality or integrity loss.

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

## How to check

- Check whether Siebel Apps - Marketing is deployed and which release runs, against the affected range 17.0-26.9 in the advisory
- Confirm whether the host is reachable only by local logon, as the vector AV:L indicates

## Fix

- Apply the patch from Oracle's Siebel CRM security advisory for the affected Marketing release (version not stated in the sources)

## Timeline

- 2026-10-23T21:57:21+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-101401

## From the sources

Vulnerability in the Siebel Apps - Marketing product of Oracle Siebel CRM (component: Marketing).  Supported versions that are affected are 17.0-26.9. Difficult to exploit vulnerability allows unauthenticated attacker with logon to the infrastructure where Siebel Apps - Marketing executes to compromise Siebel Apps - Marketing.  Successful attacks of this vulnerability can result in unauthorized ability to cause a partial denial of service (partial DOS) of Siebel Apps - Marketing. CVSS 3.1 Base Score 2.9 (Availability impacts).  CVSS Vector: (CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L).

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_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_