# github.com/free5gc/free5gc (Go) vulnerabilities

6 known vulnerabilities (1 critical, 1 high, 1 medium), with the versions each affects and the releases that fix them.

## At a glance

- Latest release: v4.3.0+incompatible (Sep 30, 2026): affected by CVE-2022-38871
- Newest unaffected release: Every release is affected by at least one advisory
- Releases: 63 since v3.0.1+incompatible (Apr 27, 2020)
- Registry: https://pkg.go.dev/github.com/free5gc/free5gc
- Releases read: Nov 8, 2026

## Version timeline

Affected versions per advisory, in version order:

- CVE-2026-55068: v3.0.1+incompatible to v4.2.2-0.20260408094255-766d2a89c263+incompatible (v4.2.2+incompatible is outside it)
- CVE-2026-53551: v3.0.1+incompatible to v4.2.2-0.20260408094255-766d2a89c263+incompatible (v4.2.2+incompatible is outside it)
- CVE-2023-47025: v3.0.1+incompatible to v3.3.0+incompatible (v3.4.0+incompatible is outside it)
- CVE-2023-47345: v3.0.1+incompatible to v3.3.0+incompatible (v3.4.0+incompatible is outside it)
- CVE-2022-38871: v3.0.1+incompatible to v4.3.0+incompatible (through the newest release)
- CVE-2022-43677: v3.0.1+incompatible to v3.2.1+incompatible (v3.2.2-0.20230313125551-78b21b21ab8e+incompatible is outside it)

## Advisories (6)

### [CVE-2026-55068](https://cve.now/CVE-2026-55068): free5GC: NRF nnrf-nfm lacks NF Profile input validation — enables NF Registration Poisoning with arbitrary service endpoints

- Severity: Critical 9.3
- Published: Aug 28, 2026
- Affected: fixed in 4.2.2; fixed in 4.2.2+incompatible.
- Fixed in v4.2.2+incompatible (released Apr 21, 2026, 129 days before disclosure).
- The latest release, v4.3.0+incompatible, is not affected.

### [CVE-2026-53551](https://cve.now/CVE-2026-53551): free5GC AUSF: null byte injection in supiOrSuci causes HTTP 500 internal service failure

- Severity: Medium 6.9
- Published: Jul 31, 2026
- Affected: fixed in 4.2.2; fixed in 4.2.2+incompatible.
- Fixed in v4.2.2+incompatible (released Apr 21, 2026, 101 days before disclosure).
- The latest release, v4.3.0+incompatible, is not affected.

### [CVE-2023-47025](https://cve.now/CVE-2023-47025): An issue in Free5gc v.3.3.0 allows a local attacker to cause a denial of service via the free5gc-compose component.

- Severity: Unrated
- Published: Nov 16, 2023
- Affected: through 3.3.0.
- Fixed in v3.4.0+incompatible (released Feb 16, 2024, 92 days after disclosure), the first release outside every affected range (no listed fixed version clears them all).
- The latest release, v4.3.0+incompatible, is not affected.

### [CVE-2023-47345](https://cve.now/CVE-2023-47345): Buffer Overflow vulnerability in free5gc 3.3.0 allows attackers to cause a denial of service via crafted PFCP message with malformed PFCP…

- Severity: Unrated
- Published: Nov 15, 2023
- Affected: through 3.3.0.
- Fixed in v3.4.0+incompatible (released Feb 16, 2024, 93 days after disclosure), the first release outside every affected range (no listed fixed version clears them all).
- The latest release, v4.3.0+incompatible, is not affected.

### [CVE-2022-38871](https://cve.now/CVE-2022-38871): In Free5gc v3.0.5, the AMF breaks due to malformed NAS messages.

- Severity: High 7.5
- Published: Nov 18, 2022
- Affected: all versions.
- No fix released. The latest release, v4.3.0+incompatible, is still affected.

### [CVE-2022-43677](https://cve.now/CVE-2022-43677): In free5GC 3.2.1, a malformed NGAP message can crash the AMF and NGAP decoders via an index-out-of-range panic in aper.GetBitString.

- Severity: Unrated
- Published: Oct 24, 2022
- Affected: through 3.2.1.
- Fixed in v3.3.0+incompatible (released Jun 8, 2023, 227 days after disclosure), the first release outside every affected range (no listed fixed version clears them all).
- The latest release, v4.3.0+incompatible, is not affected.

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