How severe is CVE-2026-1736?

CVE-2026-1736 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-2026-1736 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (45th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-1736?

CVE-2026-1736 affects Open5gs. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-1736?

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

Does CVE-2026-1736 have an EU (EUVD) identifier?

Yes. CVE-2026-1736 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-5115.

When was CVE-2026-1736 published?

CVE-2026-1736 was published on 2026-02-02 and last updated on 2026-06-17.

CVE-2026-1736

CVE-2026-1736 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% (45th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-5115
Weakness: CWE-617
Affected product: Open5gs
Published: 2026-02-02
Last modified: 2026-06-17

Description

A security vulnerability has been detected in Open5GS up to 2.7.6. Impacted is the function sgwc_s11_handle_create_indirect_data_forwarding_tunnel_request of the file /src/sgwc/s11-handler.c of the component SGWC. Such manipulation leads to reachable assertion. The attack may be launched remotely. The exploit has been disclosed publicly and may be used. A patch should be applied to remediate this issue. The issue report is flagged as already-fixed.

Frequently asked questions

What is CVE-2026-1736?: A security vulnerability has been detected in Open5GS up to 2.7.6. Impacted is the function sgwc_s11_handle_create_indirect_data_forwarding_tunnel_request of the file /src/sgwc/s11-handler.c of the component SGWC. Such manipulation leads to reachable assertion. The attack may be launched remotely. The exploit has been disclosed publicly and may be used. A patch should be applied to remediate this issue. The issue report is flagged as already-fixed.
How severe is CVE-2026-1736?: CVE-2026-1736 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-2026-1736 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (45th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-1736?: CVE-2026-1736 affects Open5gs. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-1736?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-1736 have an EU (EUVD) identifier?: Yes. CVE-2026-1736 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-5115.
When was CVE-2026-1736 published?: CVE-2026-1736 was published on 2026-02-02 and last updated on 2026-06-17.

References

Affected products (1)

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

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