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TI-2023-09645 Aliases CVE-2023-23846GHSA-3vj7-j945-rq57

Resource allocation without limits in Open5GS

Priority MEDIUM 40CWE-770Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-770.

Summary

Due to insufficient length validation in the Open5GS GTP library versions prior to versions 2.4.13 and 2.5.7, when parsing extension headers in GPRS tunneling protocol (GPTv1-U) messages, a protocol payload with any extension header length set to zero causes an infinite loop. The affected process becomes immediately unresponsive, resulting in denial of service and excessive resource consumption. CVSS3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00797 56th 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
Yes
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
Open5GSOpen5GSup to 2.4.12; up to 2.5.6—No fix listedCNA
  • Open5GS VendorOpen5GS Affected up to 2.4.12; up to 2.5.6 Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:open5gs:open5gs:*:*:*:*:*:*:*:*before 2.4.13VulnerableOpen5GS
cpe:2.3:a:open5gs:open5gs:2.5.6:*:*:*:*:*:*:*2.5.6VulnerableOpen5GS
  • cpe:2.3:a:open5gs:open5gs:*:*:*:*:*:*:*:* Versions before 2.4.13 Vulnerable ·Open5GS
  • cpe:2.3:a:open5gs:open5gs:2.5.6:*:*:*:*:*:*:* Versions 2.5.6 Vulnerable ·Open5GS

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-23846
  2. 2026-10-03 Alias added: GHSA-3vj7-j945-rq57

References

Advisory 1

  • 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 153 →

Sources

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