Is CVE-2025-70122 actively exploited?

A proof-of-concept exploit is publicly available for CVE-2025-70122, but active exploitation has not been confirmed.

Can CVE-2025-70122 be exploited remotely?

Yes. CVE-2025-70122 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2025-70122?

CVE-2025-70122 has a CVSS score of 7.5 (HIGH) and an EPSS exploitation probability of 0.13%.

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HIGHPOC

CVE-2025-70122

CWE-122Published: February 13, 2026· Updated: Feb 18, 2026

7.5

CVSS v3.1

EPSS:0.13%probability of exploitation in 30 daysPercentile:32.4th

Official Description

A heap buffer overflow vulnerability in the UPF component of free5GC v4.0.1 allows remote attackers to cause a denial of service via a crafted PFCP Session Modification Request. The issue occurs in the SDFFilterFields.UnmarshalBinary function (sdf-filter.go) when processing a declared length that exceeds the actual buffer capacity, leading to a runtime panic and UPF crash.

NVD Source

Technical Analysis

CVE-2025-70122 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in availability disruption (denial of service), with a CVSS base score of 7.5.

A proof-of-concept (PoC) exploit exists for CVE-2025-70122. While not yet confirmed in active campaigns, the availability of PoC code increases exploitation risk substantially.