How severe is CVE-2024-7203?

CVE-2024-7203 has a CVSS 3.x base score of 7.2, rated high severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2024-7203 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (68th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-7203?

CVE-2024-7203 affects Zyxel Zld. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2024-7203?

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

Does CVE-2024-7203 have an EU (EUVD) identifier?

Yes. CVE-2024-7203 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-48171.

When was CVE-2024-7203 published?

CVE-2024-7203 was published on 2024-09-03 and last updated on 2026-06-17.

CVE-2024-7203

CVE-2024-7203 is a high-severity vulnerability in Zyxel Zld with a CVSS 3.x base score of 7.2. 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-78.

Key facts

Severity: High (CVSS 3.x base score 7.2)
EPSS exploit prediction: 1% (68th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-48171
Weakness: CWE-78
Affected product: Zyxel Zld
Published: 2024-09-03
Last modified: 2026-06-17

Description

A post-authentication command injection vulnerability in Zyxel ATP series firmware versions from V4.60 through V5.38 and USG FLEX series firmware versions from V4.60 through V5.38 could allow an authenticated attacker with administrator privileges to execute some operating system (OS) commands on an affected device by executing a crafted CLI command.

Frequently asked questions

What is CVE-2024-7203?: A post-authentication command injection vulnerability in Zyxel ATP series firmware versions from V4.60 through V5.38 and USG FLEX series firmware versions from V4.60 through V5.38 could allow an authenticated attacker with administrator privileges to execute some operating system (OS) commands on an affected device by executing a crafted CLI command.
How severe is CVE-2024-7203?: CVE-2024-7203 has a CVSS 3.x base score of 7.2, rated high severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2024-7203 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (68th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-7203?: CVE-2024-7203 affects Zyxel Zld. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2024-7203?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2024-7203 have an EU (EUVD) identifier?: Yes. CVE-2024-7203 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-48171.
When was CVE-2024-7203 published?: CVE-2024-7203 was published on 2024-09-03 and last updated on 2026-06-17.

References

https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-multiple-vulnerabilities-in-firewalls-09-03-2024

Affected products (1)

cpe:2.3:o:zyxel:zld:*:*:*:*:*:*:*:*

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