Is CVE-2026-2517 actively exploited?

A proof-of-concept exploit is publicly available for CVE-2026-2517, but active exploitation has not been confirmed.

Can CVE-2026-2517 be exploited remotely?

Yes. CVE-2026-2517 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-2517?

CVE-2026-2517 has a CVSS score of 5.3 (MEDIUM) and an EPSS exploitation probability of 0.07%.

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MEDIUMPOC

CVE-2026-2517

CWE-404Published: February 15, 2026· Updated: Feb 18, 2026

5.3

CVSS v3.1

EPSS:0.06%probability of exploitation in 30 daysPercentile:19.0th

Official Description

A security flaw has been discovered in Open5GS up to 2.7.6. This vulnerability affects the function ogs_gtp2_parse_tft in the library lib/gtp/v2/types.c of the component SMF. Performing a manipulation of the argument pf[0].content.length results in denial of service. The attack is possible to be carried out remotely. The exploit has been released to the public and may be used for attacks. The project was informed of the problem early through an issue report but has not responded yet.

NVD Source

Technical Analysis

CVE-2026-2517 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-2026-2517. While not yet confirmed in active campaigns, the availability of PoC code increases exploitation risk substantially.