What’s Vulnerable › Vulnerabilities

CVE-2026-1973: Free5GC SMF establishPfcpSession null pointer dereference

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-02-06 · updated 2026-06-17
• Weakness: CWE-404

Description

A vulnerability was determined in Free5GC up to 4.1.0. The impacted element is the function establishPfcpSession of the component SMF. Executing a manipulation can lead to null pointer dereference. The attack may be launched remotely. The exploit has been publicly disclosed and may be utilized. It is best practice to apply a patch to resolve this issue.

Affected products

• free5gc: through 4.1.0

References

• https://github.com/free5gc/free5gc/
• https://github.com/free5gc/free5gc/issues/815
• https://github.com/free5gc/free5gc/issues/815#issue-3832032062
• https://github.com/free5gc/smf/pull/189
• https://vuldb.com/?ctiid.344495
• https://vuldb.com/?id.344495
• https://vuldb.com/?submit.743236

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