How severe is CVE-2026-1738?

CVE-2026-1738 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-2026-1738 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (47th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-1738?

CVE-2026-1738 affects Open5gs. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-1738?

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

Does CVE-2026-1738 have an EU (EUVD) identifier?

Yes. CVE-2026-1738 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-5123.

When was CVE-2026-1738 published?

CVE-2026-1738 was published on 2026-02-02 and last updated on 2026-06-17.

CVE-2026-1738

CVE-2026-1738 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% (47th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-5123
Weakness: CWE-617
Affected product: Open5gs
Published: 2026-02-02
Last modified: 2026-06-17

Description

A flaw has been found in Open5GS up to 2.7.6. The impacted element is the function sgwc_tunnel_add of the file /src/sgwc/context.c of the component SGWC. Executing a manipulation of the argument pdr can lead to reachable assertion. The attack can be executed remotely. The exploit has been published and may be used. It is advisable to implement a patch to correct this issue. The issue report is flagged as already-fixed.

Frequently asked questions

What is CVE-2026-1738?: A flaw has been found in Open5GS up to 2.7.6. The impacted element is the function sgwc_tunnel_add of the file /src/sgwc/context.c of the component SGWC. Executing a manipulation of the argument pdr can lead to reachable assertion. The attack can be executed remotely. The exploit has been published and may be used. It is advisable to implement a patch to correct this issue. The issue report is flagged as already-fixed.
How severe is CVE-2026-1738?: CVE-2026-1738 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-2026-1738 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (47th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-1738?: CVE-2026-1738 affects Open5gs. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-1738?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-1738 have an EU (EUVD) identifier?: Yes. CVE-2026-1738 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-5123.
When was CVE-2026-1738 published?: CVE-2026-1738 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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