CVE-2026-2525
CVE-2026-2525 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-404.
Key facts
- Severity: Medium (CVSS 3.x base score 5.3)
- CVSS v2: 5.0
- CVSS v4: 5.5
- EPSS exploit prediction: 0% (39th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-6138
- Weakness: CWE-404
- Affected product: Free5gc
- Published:
- Last modified:
Description
A vulnerability has been found in Free5GC up to 4.1.0. This affects an unknown function of the component PFCP UDP Endpoint. Such manipulation leads to denial of service. The attack can be launched remotely. The exploit has been disclosed to the public and may be used.
Frequently asked questions
- What is CVE-2026-2525?
- A vulnerability has been found in Free5GC up to 4.1.0. This affects an unknown function of the component PFCP UDP Endpoint. Such manipulation leads to denial of service. The attack can be launched remotely. The exploit has been disclosed to the public and may be used.
- How severe is CVE-2026-2525?
- CVE-2026-2525 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-2026-2525 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (39th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2026-2525?
- CVE-2026-2525 affects Free5gc. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2026-2525?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2026-2525 have an EU (EUVD) identifier?
- Yes. CVE-2026-2525 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-6138.
- When was CVE-2026-2525 published?
- CVE-2026-2525 was published on 2026-02-16 and last updated on 2026-06-17.
References
- https://github.com/free5gc/free5gc/
- https://github.com/free5gc/free5gc/issues/796
- https://github.com/free5gc/free5gc/issues/796#issue-3812169865
- https://vuldb.com/?ctiid.346113
- https://vuldb.com/?id.346113
- https://vuldb.com/?submit.739509
Affected products (1)
- cpe:2.3:a:free5gc:free5gc:*:*:*:*:*:*:*:*
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