CVE-2026-7257

Configuration disclosure via decryptable backup file

Published May 12, 2026 · Updated May 12, 2026

Insecure sensitive-data storage in Zyxel WRE6505 v2 firmware V1.00(ABDV.3)C0 allows local users to decrypt configuration backups. The backup function exports sensitive configuration data into a file protected in a form that an administrator can decrypt after download. Administrator privileges and local device access are required, and successful exploitation exposes the backup's sensitive configuration contents without altering them.

CVSS severity4.4
Medium
EPSS probability0.11%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Insecure sensitive-data storage in Zyxel WRE6505 v2 firmware V1.00(ABDV.3)C0 allows local users to decrypt configuration backups. The backup function exports sensitive configuration data into a file protected in a form that an administrator can decrypt after download. Administrator privileges and local device access are required, and successful exploitation exposes the backup's sensitive configuration contents without altering them.

The record

CVE
CVE-2026-7257
Published
May 12, 2026
Updated
May 12, 2026
Vendor
Zyxel Networks
Product
WRE6505 v2
Classifications
CWE-922, T1005
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. May 12, 2026CVE publishedPublication date reported by the CVE source.
  2. May 12, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=V1.00(ABDV.3)C0

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

Zyxel Networks · WRE6505 v2version=V1.00(ABDV.3)C0

Published CVSS scores

4.4Zyxel CorporationCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-922Insecure Storage of Sensitive Information
T1005Data from Local System

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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