CVE-2023-37002Network attack vector

Remote service crash via failed error response

Published Jan 22, 2025 · Updated Jan 28, 2025

Reachable assertion in Open5GS MME 2.6.4 and earlier allows remote attackers to repeatedly crash the service via malformed S1AP packets. The s1ap_handle_e_rab_modification_indication function tries to send an error for a missing MME_UE_S1AP_ID, then asserts when that error send fails. S1AP reachability is required; repeated packets interrupt LTE mobility-management service.

CVSS severity5.3
Medium
EPSS probability0.27%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Reachable assertion in Open5GS MME 2.6.4 and earlier allows remote attackers to repeatedly crash the service via malformed S1AP packets. The s1ap_handle_e_rab_modification_indication function tries to send an error for a missing MME_UE_S1AP_ID, then asserts when that error send fails. S1AP reachability is required; repeated packets interrupt LTE mobility-management service.

The record

CVE
CVE-2023-37002
Published
Jan 22, 2025
Updated
Jan 28, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-617, T1499
Attack vector
network
Privileges
Unavailable

Timeline

How it unfolded

  1. Jan 22, 2025CVE publishedPublication date reported by the CVE source.
  2. Jan 28, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesUnavailable in this record.

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

5.3CISA-ADPCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-617Reachable Assertion
T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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