How severe is CVE-2026-1973?

CVE-2026-1973 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-2026-1973 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (41st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-1973?

CVE-2026-1973 affects Free5gc. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-1973?

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

Does CVE-2026-1973 have an EU (EUVD) identifier?

Yes. CVE-2026-1973 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-5605.

When was CVE-2026-1973 published?

CVE-2026-1973 was published on 2026-02-06 and last updated on 2026-06-17.

CVE-2026-1973

CVE-2026-1973 is a medium-severity vulnerability in Free5gc 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-476.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
CVSS v2: 5.0
CVSS v4: 5.5
EPSS exploit prediction: 1% (41st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-5605
Weakness: CWE-476
Affected product: Free5gc
Published: 2026-02-06
Last modified: 2026-06-17

Description

A vulnerability was determined in Free5GC up to 4.1.0. The impacted element is the function establishPfcpSession of the component SMF. Executing a manipulation can lead to null pointer dereference. The attack may be launched remotely. The exploit has been publicly disclosed and may be utilized. It is best practice to apply a patch to resolve this issue.

Frequently asked questions

What is CVE-2026-1973?: A vulnerability was determined in Free5GC up to 4.1.0. The impacted element is the function establishPfcpSession of the component SMF. Executing a manipulation can lead to null pointer dereference. The attack may be launched remotely. The exploit has been publicly disclosed and may be utilized. It is best practice to apply a patch to resolve this issue.
How severe is CVE-2026-1973?: CVE-2026-1973 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-2026-1973 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (41st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-1973?: CVE-2026-1973 affects Free5gc. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-1973?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-1973 have an EU (EUVD) identifier?: Yes. CVE-2026-1973 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-5605.
When was CVE-2026-1973 published?: CVE-2026-1973 was published on 2026-02-06 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:free5gc:free5gc:*:*:*:*:*:*:*:*

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