How severe is CVE-2025-15531?

CVE-2025-15531 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-2025-15531 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (49th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-15531?

CVE-2025-15531 affects Open5gs. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-15531?

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

Does CVE-2025-15531 have an EU (EUVD) identifier?

Yes. CVE-2025-15531 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-3136.

When was CVE-2025-15531 published?

CVE-2025-15531 was published on 2026-01-17 and last updated on 2026-06-17.

CVE-2025-15531

CVE-2025-15531 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% (49th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-3136
Weakness: CWE-617
Affected product: Open5gs
Published: 2026-01-17
Last modified: 2026-06-17

Description

A vulnerability was identified in Open5GS up to 2.7.5. This vulnerability affects the function sgwc_bearer_add of the file src/sgwc/context.c. The manipulation leads to reachable assertion. The attack is possible to be carried out remotely. The exploit is publicly available and might be used. The issue report is flagged as already-fixed.

Frequently asked questions

What is CVE-2025-15531?: A vulnerability was identified in Open5GS up to 2.7.5. This vulnerability affects the function sgwc_bearer_add of the file src/sgwc/context.c. The manipulation leads to reachable assertion. The attack is possible to be carried out remotely. The exploit is publicly available and might be used. The issue report is flagged as already-fixed.
How severe is CVE-2025-15531?: CVE-2025-15531 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-2025-15531 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (49th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-15531?: CVE-2025-15531 affects Open5gs. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-15531?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-15531 have an EU (EUVD) identifier?: Yes. CVE-2025-15531 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-3136.
When was CVE-2025-15531 published?: CVE-2025-15531 was published on 2026-01-17 and last updated on 2026-06-17.

References

Affected products (1)

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

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