How severe is CVE-2023-4659?

CVE-2023-4659 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-2023-4659 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (25th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-4659?

CVE-2023-4659 affects Free5gc. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-4659?

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-2023-4659 published?

CVE-2023-4659 was published on 2023-10-02 and last updated on 2026-06-17.

CVE-2023-4659

CVE-2023-4659 is a critical-severity vulnerability in Free5gc 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-352.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 0% (25th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-352
Affected product: Free5gc
Published: 2023-10-02
Last modified: 2026-06-17

Description

Cross-Site Request Forgery vulnerability, whose exploitation could allow an attacker to perform different actions on the platform as an administrator, simply by changing the token value to "admin". It is also possible to perform POST, GET and DELETE requests without any token value. Therefore, an unprivileged remote user is able to create, delete and modify users within theapplication.

Frequently asked questions

What is CVE-2023-4659?: Cross-Site Request Forgery vulnerability, whose exploitation could allow an attacker to perform different actions on the platform as an administrator, simply by changing the token value to "admin". It is also possible to perform POST, GET and DELETE requests without any token value. Therefore, an unprivileged remote user is able to create, delete and modify users within theapplication.
How severe is CVE-2023-4659?: CVE-2023-4659 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-2023-4659 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (25th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-4659?: CVE-2023-4659 affects Free5gc. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-4659?: 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-2023-4659 published?: CVE-2023-4659 was published on 2023-10-02 and last updated on 2026-06-17.

References

https://www.incibe.es/en/incibe-cert/notices/aviso/cross-site-request-forgery-free5gc

Affected products (1)

cpe:2.3:a:free5gc:free5gc:1.1.1:*:*:*:*:*:*:*

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