How severe is CVE-2026-26024?

CVE-2026-26024 has a CVSS 3.x base score of 7.5, rated high 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 high.

Is CVE-2026-26024 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (22nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-26024?

CVE-2026-26024 affects Free5gc Smf. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-26024?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-26024 have an EU (EUVD) identifier?

Yes. CVE-2026-26024 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-7465.

When was CVE-2026-26024 published?

CVE-2026-26024 was published on 2026-02-24 and last updated on 2026-06-17.

CVE-2026-26024

CVE-2026-26024 is a high-severity vulnerability in Free5gc Smf with a CVSS 3.x base score of 7.5. 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: High (CVSS 3.x base score 7.5)
CVSS v4: 6.6
EPSS exploit prediction: 0% (22nd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-7465
Weakness: CWE-476
Affected product: Free5gc Smf
Published: 2026-02-24
Last modified: 2026-06-17

Description

free5GC SMF provides Session Management Function for free5GC, an open-source project for 5th generation (5G) mobile core networks. In versions up to and including 1.4.1, SMF panics and terminates when processing a malformed PFCP SessionReportRequest on the PFCP (UDP/8805) interface. No known upstream fix is available, but some workarounds are available. ACL/firewall the PFCP interface so only trusted UPF IPs can reach SMF (reduce spoofing/abuse surface); drop/inspect malformed PFCP SessionReportRequest messages at the network edge where feasible, and/or add recover() around PFCP handler dispatch to avoid whole-process termination (mitigation only).

Frequently asked questions

What is CVE-2026-26024?: free5GC SMF provides Session Management Function for free5GC, an open-source project for 5th generation (5G) mobile core networks. In versions up to and including 1.4.1, SMF panics and terminates when processing a malformed PFCP SessionReportRequest on the PFCP (UDP/8805) interface. No known upstream fix is available, but some workarounds are available. ACL/firewall the PFCP interface so only trusted UPF IPs can reach SMF (reduce spoofing/abuse surface); drop/inspect malformed PFCP SessionReportRequest messages at the network edge where feasible, and/or add recover() around PFCP handler dispatch to avoid whole-process termination (mitigation only).
How severe is CVE-2026-26024?: CVE-2026-26024 has a CVSS 3.x base score of 7.5, rated high 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 high.
Is CVE-2026-26024 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (22nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-26024?: CVE-2026-26024 affects Free5gc Smf. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-26024?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-26024 have an EU (EUVD) identifier?: Yes. CVE-2026-26024 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-7465.
When was CVE-2026-26024 published?: CVE-2026-26024 was published on 2026-02-24 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:free5gc:smf:*:*:*:*:*:go:*:*

More vulnerabilities in Free5gc Smf

CVE-2026-26025 — High (CVSS 7.5): free5GC SMF provides Session Management Function for free5GC, an open-source project for 5th generation (5G) mobile…
CVE-2026-25501 — High (CVSS 7.5): free5GC SMF provides Session Management Function for free5GC, an open-source project for 5th generation (5G) mobile…
CVE-2025-69232 — High (CVSS 7.5): free5GC is an open-source project for 5th generation (5G) mobile core networks. free5GC go-upf versions up to and…
CVE-2023-47346 — High (CVSS 7.5): Buffer Overflow vulnerability in free5gc 3.3.0, UPF 1.2.0, and SMF 1.2.0 allows attackers to cause a denial of service…

All CVEs affecting Free5gc Smf →

Other CWE-476 (NULL Pointer Dereference) vulnerabilities

CVE-2022-36648 — Critical (CVSS 10.0): The hardware emulation in the of_dpa_cmd_add_l2_flood of rocker device model in QEMU, as used in 7.0.0 and earlier,…
CVE-2020-14500 — Critical (CVSS 10.0): Secomea GateManager all versions prior to 9.2c, An attacker can send a negative value and overwrite arbitrary data.
CVE-2010-2495 — Critical (CVSS 10.0): The pppol2tp_xmit function in drivers/net/pppol2tp.c in the L2TP implementation in the Linux kernel before 2.6.34 does…
CVE-2026-46195 — Critical (CVSS 9.8): In the Linux kernel, the following vulnerability has been resolved: smb: client: validate dacloffset before building…
CVE-2026-31657 — Critical (CVSS 9.8): In the Linux kernel, the following vulnerability has been resolved: batman-adv: hold claim backbone gateways by…
CVE-2026-31436 — Critical (CVSS 9.8): In the Linux kernel, the following vulnerability has been resolved: dmaengine: idxd: fix possible wrong descriptor…

Browse all CWE-476 (NULL Pointer Dereference) vulnerabilities →