CVE-2026-4531
MEDIUM5.3EPSS 0.09%Free5GC AMF is vulnerable to DoS through its HandleRegistrationComplete function
Published: 3/22/2026Modified: 3/24/2026
Description
A weakness has been identified in Free5GC 4.1.0. Affected is the function HandleRegistrationComplete of the file internal/gmm/handler.go of the component AMF. Executing a manipulation can lead to denial of service. The attack may be performed from remote. This patch is called 52e9386401ce56ea773c5aa587d4cdf7d53da799. It is best practice to apply a patch to resolve this issue.
Affected packages (1)
- Go/github.com/free5gc/amffrom 0, < 1.4.3-0.20260306074636-52e9386401ce
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 4.0 | — | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N |
| osv | CVSS 3.1 | MEDIUM5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L |
References (8)
- ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2026-4531
- PATCHhttps://github.com/free5gc/amf
- WEBhttps://github.com/free5gc/amf/commit/52e9386401ce56ea773c5aa587d4cdf7d53da799
- WEBhttps://github.com/free5gc/amf/pull/198
- WEBhttps://github.com/free5gc/free5gc/issues/792
- WEBhttps://vuldb.com/?ctiid.352319
- WEBhttps://vuldb.com/?id.352319
- WEBhttps://vuldb.com/?submit.774073