CVE-2020-15322Public exploit

Local database access via hardcoded maintenance password

Published Jun 29, 2020 · Updated Aug 4, 2024

Hardcoded credentials in Zyxel CloudCNM SecuManager 3.1.0 and 3.1.1 allow local users to access its MySQL database. The appliance stores a fixed password for the debian-sys-maint account in /opt/mysql/etc/mysql/debian.cnf instead of generating a per-installation secret. MySQL listens only on loopback, so exploitation requires local code execution or a local session and grants database access under the maintenance account.

CVSS severity9.8
Critical
EPSS probability1.25%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Hardcoded credentials in Zyxel CloudCNM SecuManager 3.1.0 and 3.1.1 allow local users to access its MySQL database. The appliance stores a fixed password for the debian-sys-maint account in /opt/mysql/etc/mysql/debian.cnf instead of generating a per-installation secret. MySQL listens only on loopback, so exploitation requires local code execution or a local session and grants database access under the maintenance account.

The record

CVE
CVE-2020-15322
Published
Jun 29, 2020
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-798, T1078.001
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 29, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
7.5NIST NVDAV:N/AC:L/Au:N/C:P/I:P/A:P

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-798Use of Hard-coded Credentials
T1078.001Valid Accounts: Default Accounts

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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