How severe is CVE-2026-1586?

CVE-2026-1586 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-2026-1586 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (40th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-1586?

CVE-2026-1586 affects Open5gs. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-1586?

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

Does CVE-2026-1586 have an EU (EUVD) identifier?

Yes. CVE-2026-1586 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-4997.

When was CVE-2026-1586 published?

CVE-2026-1586 was published on 2026-01-29 and last updated on 2026-06-17.

CVE-2026-1586

CVE-2026-1586 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-404.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
CVSS v2: 5.0
CVSS v4: 5.5
EPSS exploit prediction: 1% (40th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-4997
Weakness: CWE-404
Affected product: Open5gs
Published: 2026-01-29
Last modified: 2026-06-17

Description

A flaw has been found in Open5GS up to 2.7.5. Impacted is the function ogs_gtp2_f_teid_to_ip of the file /sgwc/s11-handler.c of the component SGWC. Executing a manipulation can lead to denial of service. The attack may be performed from remote. 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-2026-1586?: A flaw has been found in Open5GS up to 2.7.5. Impacted is the function ogs_gtp2_f_teid_to_ip of the file /sgwc/s11-handler.c of the component SGWC. Executing a manipulation can lead to denial of service. The attack may be performed from remote. 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-2026-1586?: CVE-2026-1586 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-2026-1586 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (40th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-1586?: CVE-2026-1586 affects Open5gs. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-1586?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-1586 have an EU (EUVD) identifier?: Yes. CVE-2026-1586 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-4997.
When was CVE-2026-1586 published?: CVE-2026-1586 was published on 2026-01-29 and last updated on 2026-06-17.

References

Affected products (1)

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

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