CVE-2026-23822 — The XML Handling Component Of AOS-8 DHCP Services Vulnerability

CVE-2026-23822 — The XML Handling Component Of AOS-8 DHCP Services Vulnerability

CVE-2026-23822 — A vulnerability in the XML handling component of AOS-8 DHCP services could allow an unauthenticated remote attacker to trigger a denial-of-service condition. Successful exploitation could allow an attacker to cause excessive resource consumption upon user interaction, leading to ser

What This Means For You

  • If your environment is affected by this vulnerability type, review your exposure and prioritize patching based on your environment. Monitor vendor advisories for CVE-2026-23822 updates and patches.

Related ATT&CK Techniques

🛡️ Detection Rules

3 rules · 6 SIEM formats

3 detection rules auto-generated for this incident, mapped to MITRE ATT&CK. Sigma YAML is free — export to any SIEM format via the Intel Bot.

high T1190 Initial Access

CVE-2026-23822 AOS-8 DHCP XML DoS Attempt

Sigma YAML — free preview
title: CVE-2026-23822 AOS-8 DHCP XML DoS Attempt
id: scw-2026-05-12-ai-1
status: experimental
level: high
description: |
  Detects attempts to exploit CVE-2026-23822 by sending a POST request to a DHCP XML endpoint on AOS-8 devices, which could lead to a Denial of Service condition. This rule specifically targets the XML handling component of AOS-8 DHCP services.
author: SCW Feed Engine (AI-generated)
date: 2026-05-12
references:
  - https://shimiscyberworld.com/posts/nvd-CVE-2026-23822/
tags:
  - attack.initial_access
  - attack.t1190
logsource:
    category: webserver
detection:
  selection:
      cs-uri|contains:
          - '/dhcp/xml'
      cs-method|exact:
          - 'POST'
      sc-status|exact:
          - '500'
  condition: selection
falsepositives:
  - Legitimate administrative activity

Source: Shimi's Cyber World · License & reuse

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Indicators of Compromise

IDTypeIndicator
CVE-2026-23822 vulnerability CVE-2026-23822
Source & Attribution
Source PlatformNVD
ChannelNational Vulnerability Database
PublishedMay 12, 2026 at 22:16 UTC

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