What’s Vulnerable › Vulnerabilities

CVE-2026-116544: Open5GS 2.6.1 through 2.8.0 Out-of-Bounds Read via parse_scheme_output

• Severity: low (CVSS 3.7 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-26 · updated 2026-10-26
• Weakness: CWE-125

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

• Open5GS: from 2.6.1 through 2.8.0

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

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