Open5GS Diameter S6a mme-fd-path.c mme_s6a_subscription_data_from_avp heap-based overflow
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- —
- Confidentiality · integrity · availability
- Low · Low · Low
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA.
Summary
A vulnerability was determined in Open5GS up to 2.7.1. This vulnerability affects the function mme_s6a_subscription_data_from_avp of the file src/mme/mme-fd-path.c of the component Diameter S6a Interface. Executing a manipulation of the argument msisdn_len can lead to heap-based buffer overflow. It is possible to launch the attack remotely. The exploit has been publicly disclosed and may be utilized. Upgrading to version 2.7.2 is able to resolve this issue. This patch is called 7ea82cb87bb65c3694d8d7c7a5efed1c4d3c9304. Upgrading the affected component is recommended.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | Open5GS | 2.7.0; 2.7.1 | 2.7.2 | Patch available | CNA |
- Open5GS Vendor— Affected 2.7.0; 2.7.1 Fixed in 2.7.2 Patch available CNA
Remediation
- Fix · CNA Open5GS Fixed in 2.7.2
Timeline
- 2026-10-02 Threatist record created from CVE-2024-14043
- 2026-10-03 Alias added: GHSA-3h9f-gfp6-w666
References
Patch 2
Sources
- CVE-2024-14043 · CVE Program
- CVE-2024-14043 · NVD
- FIRST EPSS
- GHSA-3h9f-gfp6-w666 · GitHub Advisory Database · CC BY 4.0
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