How severe is CVE-2026-37230?

CVE-2026-37230 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 none, integrity none, and availability high.

Is CVE-2026-37230 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-37230?

CVE-2026-37230 affects Mosaic5g Flexric. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-37230?

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-2026-37230 have an EU (EUVD) identifier?

Yes. CVE-2026-37230 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-33863.

When was CVE-2026-37230 published?

CVE-2026-37230 was published on 2026-06-01 and last updated on 2026-06-17.

CVE-2026-37230

CVE-2026-37230 is a high-severity vulnerability in Mosaic5g Flexric 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-476.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 1% (46th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-33863
Weakness: CWE-476
Affected product: Mosaic5g Flexric
Published: 2026-06-01
Last modified: 2026-06-17

Description

FlexRIC v2.0.0 crashes when the near-RT RIC receives a RIC_INDICATION message with a ran_func_id that does not exist in its registry. The lookup returns NULL, triggering assert() in Debug builds (SIGABRT) or NULL pointer dereference in Release builds (SIGSEGV). A remote unauthenticated attacker can crash the near-RT RIC (port 36421) by sending a crafted RIC_INDICATION with an arbitrary ran_func_id value.

Frequently asked questions

What is CVE-2026-37230?: FlexRIC v2.0.0 crashes when the near-RT RIC receives a RIC_INDICATION message with a ran_func_id that does not exist in its registry. The lookup returns NULL, triggering assert() in Debug builds (SIGABRT) or NULL pointer dereference in Release builds (SIGSEGV). A remote unauthenticated attacker can crash the near-RT RIC (port 36421) by sending a crafted RIC_INDICATION with an arbitrary ran_func_id value.
How severe is CVE-2026-37230?: CVE-2026-37230 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 none, integrity none, and availability high.
Is CVE-2026-37230 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-37230?: CVE-2026-37230 affects Mosaic5g Flexric. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-37230?: 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-2026-37230 have an EU (EUVD) identifier?: Yes. CVE-2026-37230 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-33863.
When was CVE-2026-37230 published?: CVE-2026-37230 was published on 2026-06-01 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:mosaic5g:flexric:2.0.0:*:*:*:*:*:*:*

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