How severe is CVE-2025-9405?

CVE-2025-9405 has a CVSS 3.x base score of 5.3, rated medium 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 low.

Is CVE-2025-9405 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (44th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-9405?

CVE-2025-9405 affects Open5gs. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-9405?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2025-9405 have an EU (EUVD) identifier?

Yes. CVE-2025-9405 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-25719.

When was CVE-2025-9405 published?

CVE-2025-9405 was published on 2025-08-25 and last updated on 2026-06-17.

CVE-2025-9405

CVE-2025-9405 is a medium-severity vulnerability in Open5gs with a CVSS 3.x base score of 5.3. 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-617.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
CVSS v2: 5.0
CVSS v4: 5.5
EPSS exploit prediction: 1% (44th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-25719
Weakness: CWE-617
Affected product: Open5gs
Published: 2025-08-25
Last modified: 2026-06-17

Description

A security flaw has been discovered in Open5GS up to 2.7.5. The impacted element is the function gmm_state_exception of the file src/amf/gmm-sm.c. The manipulation results in reachable assertion. It is possible to launch the attack remotely. The exploit has been released to the public and may be exploited. The patch is identified as 8e5fed16114f2f5e40bee1b161914b592b2b7b8f. Applying a patch is advised to resolve this issue.

Frequently asked questions

What is CVE-2025-9405?: A security flaw has been discovered in Open5GS up to 2.7.5. The impacted element is the function gmm_state_exception of the file src/amf/gmm-sm.c. The manipulation results in reachable assertion. It is possible to launch the attack remotely. The exploit has been released to the public and may be exploited. The patch is identified as 8e5fed16114f2f5e40bee1b161914b592b2b7b8f. Applying a patch is advised to resolve this issue.
How severe is CVE-2025-9405?: CVE-2025-9405 has a CVSS 3.x base score of 5.3, rated medium 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 low.
Is CVE-2025-9405 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (44th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-9405?: CVE-2025-9405 affects Open5gs. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-9405?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-9405 have an EU (EUVD) identifier?: Yes. CVE-2025-9405 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-25719.
When was CVE-2025-9405 published?: CVE-2025-9405 was published on 2025-08-25 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:open5gs:open5gs:*:*:*:*:*:*:*:*

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