CVE-2026-7257 — The Configuration File Of Zyxel WRE6505 Vulnerability
CVE-2026-7257 — ** UNSUPPORTED WHEN ASSIGNED ** An insecure storage of sensitive information vulnerability in the configuration file of Zyxel WRE6505 v2 firmware version V1.00(ABDV.3)C0 could allow a local attacker with administrator privileges to download and decrypt a backup configuration file.
What This Means For You
- If your environment is affected by CWE-922, review your exposure and prioritize patching based on your environment. Monitor vendor advisories for CVE-2026-7257 updates and patches.
Related ATT&CK Techniques
🛡️ Detection Rules
3 rules · 6 SIEM formats3 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.
CVE-2026-7257 - Zyxel WRE6505 Configuration File Download
title: CVE-2026-7257 - Zyxel WRE6505 Configuration File Download
id: scw-2026-05-12-ai-1
status: experimental
level: medium
description: |
Detects the download of a Zyxel WRE6505 backup configuration file, which is vulnerable in CVE-2026-7257. This file, if accessed insecurely, can be decrypted by a local administrator, potentially exposing sensitive information.
author: SCW Feed Engine (AI-generated)
date: 2026-05-12
references:
- https://shimiscyberworld.com/posts/nvd-CVE-2026-7257/
tags:
- attack.credential_access
- attack.t1003
logsource:
category: file_access
detection:
selection:
TargetFilename|contains:
- '/zyxel/wre6505/config/backup.conf'
EventType:
- 'download'
condition: selection
falsepositives:
- Legitimate administrative activity
Source: Shimi's Cyber World · License & reuse
Indicators of Compromise
| ID | Type | Indicator |
|---|---|---|
| CVE-2026-7257 | vulnerability | CVE-2026-7257 |
| CWE-922 | weakness | CWE-922 |
Written by SCW Vulnerability Desk
Source & Attribution
| Source Platform | NVD |
| Channel | National Vulnerability Database |
| Published | May 12, 2026 at 07:16 UTC |
This content was curated and summarized by Shimi's Cyber World for informational purposes. It is not copied or republished in full. All intellectual property rights remain with the original author and source.
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