CVE-2026-116544

EUVD-2026-109914
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
VulnCheckCNA
3.7 LOW
NETWORK
HIGH
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 28.87%
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources (CNA/ADP records, vendor advisories, Enginsight analysis).
VendorProductVersionSource
open5gsopen5gs
2.6.1 ≤
𝑥
≤ 2.8.0
CNA
Common Weakness Enumeration
References
https://github.com/open5gs/open5gs
https://github.com/open5gs/open5gs/blob/v2.8.0/lib/sbi/conv.c#L39
https://github.com/open5gs/open5gs/commit/fdddcd5e3359703f0a945b308e64494a18a534f1
https://github.com/open5gs/open5gs/security/advisories/GHSA-vp5f-rg8g-8p7j
https://www.vulncheck.com/advisories/open5gs-2.6.1-through-2.8.0-out-of-bounds-read-via-parse-scheme-output