CVE-2020-15324Public exploitNetwork attack vector

Unauthenticated CPE management via hardcoded XMPP credentials

Published Jun 29, 2020 · Updated Aug 4, 2024

Hardcoded credentials in Zyxel CloudCNM SecuManager 3.1.0 and 3.1.1 allow remote attackers to access the XMPP administration service. The /opt/axess/opt/axXMPPHandler/config/xmpp_config.py file embeds the XMPP administrator identifier and password and grants world-read access. The service is exposed on WAN port 5280 by default, and the credentials permit account listing or removal and management of connected CPEs.

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 remote attackers to access the XMPP administration service. The /opt/axess/opt/axXMPPHandler/config/xmpp_config.py file embeds the XMPP administrator identifier and password and grants world-read access. The service is exposed on WAN port 5280 by default, and the credentials permit account listing or removal and management of connected CPEs.

The record

CVE
CVE-2020-15324
Published
Jun 29, 2020
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-798, T1552.001, T1078
Attack vector
network
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 vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

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

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

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

Weakness, pattern, technique

CWE-798Use of Hard-coded Credentials
T1552.001Unsecured Credentials in Files
T1078Valid 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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