CVE-2026-116544: medium-severity vulnerability in open5gs
Open5GS 2.6.1 through 2.8.0 Out-of-Bounds Read via parse_scheme_output
Published
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 6.3epss 0.4%
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.
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
Affected products
open5gs · open5gsRelated CVEs — open5gs
In the same product, most dangerous first.
CVE-2026-15720HIGHPre-auth heap out-of-bounds read in the AMF NAS 5GS mobile-identity handlerEPSS 0.5%CVE-2026-108105HIGHOpen5GS through 2.8.0 MME Reachable Assertion via GTPv1 SGSN Context RequestEPSS 0.5%CVE-2026-116543HIGHOpen5GS 1.3.0 through 2.8.0 Heap Out-of-Bounds Write via SBI Multipart ParserEPSS 0.4%CVE-2026-108103MEDIUMOpen5GS through 2.8.0 Heap Out-of-Bounds Read via PFCP Dropped DL Traffic Threshold IEEPSS 0.4%CVE-2026-108102MEDIUMOpen5GS through 2.8.0 Heap Out-of-Bounds Read via PFCP Volume Measurement IEEPSS 0.4%
References
https://github.com/open5gs/open5gshttps://github.com/open5gs/open5gs/blob/v2.8.0/lib/sbi/conv.c#L39https://github.com/open5gs/open5gs/commit/fdddcd5e3359703f0a945b308e64494a18a534f1https://github.com/open5gs/open5gs/security/advisories/GHSA-vp5f-rg8g-8p7jhttps://www.vulncheck.com/advisories/open5gs-2.6.1-through-2.8.0-out-of-bounds-read-via-parse-scheme-output