Medium severity5.3NVD Advisory· Published Oct 9, 2026· Updated Oct 9, 2026

CVE-2026-108103

Description

Open5GS through 2.8.0 contains a heap out-of-bounds read vulnerability in ogs_pfcp_parse_dropped_dl_traffic_threshold() that allows remote unauthenticated attackers to read past IE buffers via short IEs. Attackers can send PFCP Session Establishment or Modification Requests to the UPF on UDP port 8805 with DLPA and DLBY flags set, potentially crashing the UPF.

Affected products

Open5gs/Open5gsllm-fuzzy
Range: <=2.8.0

Patches

Vulnerability mechanics

References

github.com/open5gs/open5gs/blob/v2.8.0/lib/pfcp/types.cnvd
github.com/open5gs/open5gs/commit/88e64fc1f87e0d321364b3bb710ef6a8f274e568nvd
www.vulncheck.com/advisories/open5gs-through-2.8.0-heap-out-of-bounds-read-via-pfcp-dropped-dl-traffic-threshold-ienvd

News mentions

No linked articles in our index yet.

cvss	0.345
epss	0.000
exploit	0.000
kev	0.000
patch	-0.070
ransomware	0.000