CVE-2020-15331 Zyxel CloudCNM SecuManager 3.1.0 and 3.1.1 has a hardcoded OAUTH_SECRET_KEY in /opt/axess/etc/default/axess.

CriticalCVSS 9.8 EPSS 0.89%

Published: 2020-06-26 17:39
Updated: 2026-06-17 05:56
Exploit status: No public exploit known

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Description

Zyxel CloudCNM SecuManager 3.1.0 and 3.1.1 has a hardcoded OAUTH_SECRET_KEY in /opt/axess/etc/default/axess.

Affected products

Product	Affected versions	Fixed in
zyxel cloudcnm secumanager	= 3.1.0	No fix listed
zyxel cloudcnm secumanager	= 3.1.1	No fix listed

References

pierrekim.github.io exploit third-party-advisory
www.zyxel.com vendor-advisory

CVSS v3.1

9.8 Critical

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector: Network
Attack Complexity: Low
Privileges Required: None
User Interaction: None
Scope: Unchanged
Confidentiality: High
Integrity: High
Availability: High

Weakness & likelihood

EPSS (exploitation probability, 30 days): 0.89% (percentile 59.9)
CWE: CWE-311

Public exploit references

Metadata only. CVERadar never hosts or runs exploit code.

No public exploit references known.