Out-of-bounds Read in Open5gs
CVE-2026-108102
Open5GS through 2.8.0 contains a heap out-of-bounds read vulnerability in ogs_pfcp_parse_volume_measurement() in lib/pfcp/types.c that allows remote unauthenticated attackers to read past IE buffers. Attackers can send a PFCP Session Report Request to the SMF on UDP port 8805 with a short, all-flags Volume Measurement IE, reading up to 48 bytes and potentially crashing the SMF.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- github.com/open5gs/open5gs/commit/88e64fc1f87e0d321364b3bb710ef6a8f274e568 (patch)
- github.com/open5gs/open5gs (product)
- github.com/open5gs/open5gs/security/advisories/GHSA-37c3-hv4f-688p (vendor-advisory)
- github.com/open5gs/open5gs/blob/v2.8.0/lib/pfcp/types.c (technical-description)
- www.vulncheck.com/advisories/open5gs-through-2.8.0-heap-out-of-bounds-read-via-… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-108102?
- CVE-2026-108102 is a medium-severity vulnerability in Open5gs, classified under Out-of-bounds Read. CVSS score: 5.3/10. Published 2026-10-09.
- How severe is CVE-2026-108102?
- Medium severity. CVSS v3 base score is 5.3 out of 10.