CVE-2020-15347Public exploitNetwork attack vector

Remote code execution via hardcoded management credentials

Published Jun 26, 2020 · Updated Aug 4, 2024

Hardcoded credentials in Zyxel CloudCNM SecuManager 3.1.0 and 3.1.1 allow remote attackers to execute Python code through its web interface. The management interface on ports 80 and 9673 accepts a fixed axiros account credential and permits authenticated uploads that replace ZODB-backed Python objects. No prior account access or user interaction is required; network access to either web port is sufficient to run uploaded code as the appliance's axess service account.

CVSS severity9.8
Critical
EPSS probability1.31%
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 execute Python code through its web interface. The management interface on ports 80 and 9673 accepts a fixed axiros account credential and permits authenticated uploads that replace ZODB-backed Python objects. No prior account access or user interaction is required; network access to either web port is sufficient to run uploaded code as the appliance's axess service account.

The record

CVE
CVE-2020-15347
Published
Jun 26, 2020
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-522, T1078.001
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

9.8NIST National Vulnerability DatabaseCVSS: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.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-522Insufficiently Protected Credentials
T1078.001Default 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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