CVE-2020-15337Public exploitNetwork attack vector

CPE credential exposure via GET query parameters

Published Jun 26, 2020 · Updated Aug 4, 2024

Sensitive-data exposure in /registerCpe in Zyxel CloudCNM SecuManager 3.1.0 and 3.1.1 allows context-dependent attackers to capture CPE credentials. The WAN-facing xmppCnrSender.py gateway places JID and PWD values in the /registerCpe GET query string and sends the traffic without encryption. Network-path or request-log access exposes the registration credentials; this issue does not establish code execution or service interruption.

CVSS severity5.3
Medium
EPSS probability0.79%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Sensitive-data exposure in /registerCpe in Zyxel CloudCNM SecuManager 3.1.0 and 3.1.1 allows context-dependent attackers to capture CPE credentials. The WAN-facing xmppCnrSender.py gateway places JID and PWD values in the /registerCpe GET query string and sends the traffic without encryption. Network-path or request-log access exposes the registration credentials; this issue does not establish code execution or service interruption.

The record

CVE
CVE-2020-15337
Published
Jun 26, 2020
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-862, T1040
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 26, 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

5.3NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/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)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-862Missing Authorization
T1040Network Sniffing

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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