How severe is CVE-2023-46324?

CVE-2023-46324 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2023-46324 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (34th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-46324?

CVE-2023-46324 affects Free5gc Udm. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-46324?

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.

When was CVE-2023-46324 published?

CVE-2023-46324 was published on 2023-10-23 and last updated on 2026-06-17.

CVE-2023-46324

CVE-2023-46324 is a high-severity vulnerability in Free5gc Udm with a CVSS 3.x base score of 7.5. 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-347.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 0% (34th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-347
Affected product: Free5gc Udm
Published: 2023-10-23
Last modified: 2026-06-17

Description

pkg/suci/suci.go in free5GC udm before 1.2.0, when Go before 1.19 is used, allows an Invalid Curve Attack because it may compute a shared secret via an uncompressed public key that has not been validated. An attacker can send arbitrary SUCIs to the UDM, which tries to decrypt them via both its private key and the attacker's public key.

Frequently asked questions

What is CVE-2023-46324?: pkg/suci/suci.go in free5GC udm before 1.2.0, when Go before 1.19 is used, allows an Invalid Curve Attack because it may compute a shared secret via an uncompressed public key that has not been validated. An attacker can send arbitrary SUCIs to the UDM, which tries to decrypt them via both its private key and the attacker's public key.
How severe is CVE-2023-46324?: CVE-2023-46324 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2023-46324 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (34th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-46324?: CVE-2023-46324 affects Free5gc Udm. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-46324?: 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.
When was CVE-2023-46324 published?: CVE-2023-46324 was published on 2023-10-23 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:free5gc:udm:*:*:*:*:*:go:*:*

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CVE-2026-33192 — Medium (CVSS 5.3): Free5GC is an open-source Linux Foundation project for 5th generation (5G) mobile core networks. In versions prior to…

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