Is CVE-2026-2523 actively exploited?

A proof-of-concept exploit is publicly available for CVE-2026-2523, but active exploitation has not been confirmed.

Can CVE-2026-2523 be exploited remotely?

Yes. CVE-2026-2523 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-2523?

CVE-2026-2523 has a CVSS score of 5.3 (MEDIUM) and an EPSS exploitation probability of 0.07%.

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MEDIUMPOC

CVE-2026-2523

CWE-617Published: February 16, 2026· Updated: Feb 18, 2026

5.3

CVSS v3.1

EPSS:0.07%probability of exploitation in 30 daysPercentile:20.6th

Official Description

A vulnerability was detected in Open5GS up to 2.7.6. The affected element is the function smf_gn_handle_create_pdp_context_request of the file /src/smf/gn-handler.c of the component SMF. The manipulation results in reachable assertion. It is possible to launch the attack remotely. The exploit is now public and may be used. The project was informed of the problem early through an issue report but has not responded yet.

NVD Source

Technical Analysis

CVE-2026-2523 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 proof-of-concept (PoC) exploit exists for CVE-2026-2523. While not yet confirmed in active campaigns, the availability of PoC code increases exploitation risk substantially.