How severe is CVE-2020-15324?

CVE-2020-15324 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2020-15324 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (66th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-15324?

CVE-2020-15324 primarily affects Zyxel Cloud Cnm Secumanager. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2020-15324?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2020-15324 published?

CVE-2020-15324 was published on 2020-06-29 and last updated on 2026-06-17.

CVE-2020-15324

CVE-2020-15324 is a critical-severity vulnerability in Zyxel Cloud Cnm Secumanager with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-798.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 1% (66th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-798
Affected product: Zyxel Cloud Cnm Secumanager
Published: 2020-06-29
Last modified: 2026-06-17

Description

Zyxel CloudCNM SecuManager 3.1.0 and 3.1.1 has a world-readable axess/opt/axXMPPHandler/config/xmpp_config.py file that stores hardcoded credentials.

Frequently asked questions

What is CVE-2020-15324?: Zyxel CloudCNM SecuManager 3.1.0 and 3.1.1 has a world-readable axess/opt/axXMPPHandler/config/xmpp_config.py file that stores hardcoded credentials.
How severe is CVE-2020-15324?: CVE-2020-15324 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2020-15324 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (66th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-15324?: CVE-2020-15324 primarily affects Zyxel Cloud Cnm Secumanager. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2020-15324?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2020-15324 published?: CVE-2020-15324 was published on 2020-06-29 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:a:zyxel:cloud_cnm_secumanager:3.1.0:*:*:*:*:*:*:*
cpe:2.3:a:zyxel:cloud_cnm_secumanager:3.1.1:*:*:*:*:*:*:*

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