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TI-2026-80461 Aliases CVE-2026-116544GHSA-3rq3-76pc-797v

Out-of-bounds read in Open5GS SUCI parsing

Priority LOW 28CWE-125Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
High
Attack requirements
Present
Impact type
Information disclosure
Confidentiality · integrity · availability
Low · None · None
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-125 and the CVSS impact.

Summary

Open5GS 2.6.1 through 2.8.0 contains an out-of-bounds read in parse_scheme_output() in lib/sbi/conv.c during SUCI de-concealment, caused by incomplete length validation. A remote unauthenticated UE or SBI peer can submit a crafted SUCI with a 42-byte scheme output to a UDM, causing a heap over-read past the buffer.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Description from the CNA

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00354 29th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
Open5GSopen5gs2.6.1 – 2.8.0—No fix listedCNA
  • open5gs VendorOpen5GS Affected 2.6.1 – 2.8.0 Fixed in — No fix listed CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:open5gs:open5gs:*:*:*:*:*:*:*:*——Open5GS
  • cpe:2.3:a:open5gs:open5gs:*:*:*:*:*:*:*:* Versions — — ·Open5GS

Remediation

The sources list no fixed version for Open5GS.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Timeline

  1. 2026-10-26 Threatist record created from CVE-2026-116544
  2. 2026-10-26 CISA SSVC decision points changed
  3. 2026-10-26 Priority changed: MEDIUM → LOW
  4. 2026-10-27 Alias added: GHSA-3rq3-76pc-797v

References

Patch 1

Advisory 1

Other 2

  • TI-2024-26883 open5gs v2.6.4 is vulnerable to Buffer Overflow. CVSS 3.1CRITICAL 9.8
  • TI-2024-26882 Open5GS v2.6.4 is vulnerable to Buffer Overflow. CVSS 3.1CRITICAL 9.8
  • TI-2024-22649 Open5GS MME versions <= 2.6.4 contains an assertion that can be remotely triggered via a… CVSS 3.1HIGH 8.6
  • TI-2023-18757 Open5GS MME versions <= 2.6.4 contain a reachable assertion in the `Uplink NAS Transport`… CVSS 3.1HIGH 8.6
  • TI-2023-18755 Open5GS MME version <= 2.6.4 contains an assertion that can be remotely triggered via a… CVSS 3.1HIGH 8.6
  • TI-2023-18754 Open5GS MME versions <= 2.6.4 contain an assertion that can be remotely triggered via a… CVSS 3.1HIGH 8.6
See all 159 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences