Vulnerability · Published Oct 26, 2026 · Assigned by VulnCheck
CVE-2026-116544Open5GS 2.6.1 through 2.8.0 Out-of-Bounds Read via parse_scheme_output
Low 3.7
In plain English
A low-severity out-of-bounds read in open5gs from open5gs. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 29% of all known vulnerabilities).
Severity (CVSS 3.1)3.7Low
Exploit odds (30 days)0.4%top 70.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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.
Affected products (as reported)
Weakness: CWE-125 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
References
- GitHub Security Advisory (GHSA-vp5f-rg8g-8p7j) vendor-advisory
- Patch Commit patch
- https://github.com/open5gs/open5gs/blob/v2.8.0/lib/sbi/conv.c#L39 technical-description
- https://github.com/open5gs/open5gs product
- VulnCheck Advisory: Open5GS 2.6.1 through 2.8.0 Out-of-Bounds Read via parse_scheme_output third-party-advisory