Is CVE-2025-9405 in the CISA KEV catalog?

No. CVE-2025-9405 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2025-9405?

CVE-2025-9405 has a CVSS v3 base score of 5.3 (MEDIUM).

What is the EPSS score for CVE-2025-9405?

CVE-2025-9405 has an EPSS score of 0.58% (44th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2025-9405?

Upgrade open5gs to 2.7.6 or later.

CVE & CISA-KEV Catalog

CVE-2025-9405

MEDIUM

5.3

CVSS v3

NVD

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.

CWE-617

How to fix

Remediation Available

open5gsNVD

Affected:< 2.7.6Fixed in:2.7.6CVE-2025-9405derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityLow

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Exploit Intelligence

0.58%probability of exploitation in 30 days

44thpercentile

Moderate risk: more likely to be exploited than 44% of all known CVEs.

References

Patch1

github.com

Exploit1

github.com

Third-Party Advisory3

Issue Tracking1

github.com

VDB Entry1

vuldb.com

Product1

github.com

Related Vulnerabilities

Other CWE-617 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2020-8617	High	7.5	93%	-	Fix
CVE-2020-36222	High	7.5	78%	-	Fix
CVE-2006-5779	High	7.5	75%	-	Fix
CVE-2021-27212	High	7.5	64%	-	Fix
CVE-2018-5740	High	7.5	59%	-	Fix
CVE-2023-28425	Medium	5.5	55%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-09-02.