CVE-2026-116544
Open5GS 2.6.1 through 2.8.0 Out-of-Bounds Read via parse_scheme_output
- State
- Published
- Severity
- 6.3 Medium
- Published
- Oct 26, 2026
- Updated
- Oct 26, 2026
- Reserved
- Oct 26, 2026
Description
Open5GS 2.6.1 through 2.8.0 contains an out-of-bounds read vulnerability in parse_scheme_output() in lib/sbi/conv.c during SUCI de-concealment due to incomplete length validation. Remote unauthenticated UEs or SBI peers can submit a crafted SUCI with a 42-byte scheme output to a UDM, triggering a heap over-read past the buffer.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 6.3 Medium | CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 3.7 Low | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N | VulnCheck |
Weaknesses
- CWE-125 Out-of-bounds Read
Affected Products
| Product | Versions |
|---|---|
open5gsopen5gs |
|
References
- GitHub Security Advisory (GHSA-vp5f-rg8g-8p7j)vendor-advisory
- Patch Commitpatch
- https://github.com/open5gs/open5gs/blob/v2.8.0/lib/sbi/conv.c#L39technical-description
- https://github.com/open5gs/open5gsproduct
- VulnCheck Advisory: Open5GS 2.6.1 through 2.8.0 Out-of-Bounds Read via parse_scheme_outputthird-party-advisory
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