CVE-2023-37007Public exploitNetwork attack vector

Service crash via asserted error-response failure

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 input. In s1ap_handle_handover_cancel, the missing MME_UE_S1AP_ID path calls s1ap_send_error_indication with incomplete identifiers and asserts when that call returns an error. Access to the S1AP interface through a base station or a compromised or misconfigured base-station link is required, and repeated packets can sustain cellular-service interruption.

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

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Reachable assertion in Open5GS MME 2.6.4 and earlier allows remote attackers to repeatedly crash the service via malformed S1AP input. In s1ap_handle_handover_cancel, the missing MME_UE_S1AP_ID path calls s1ap_send_error_indication with incomplete identifiers and asserts when that call returns an error. Access to the S1AP interface through a base station or a compromised or misconfigured base-station link is required, and repeated packets can sustain cellular-service interruption.

The record

CVE
CVE-2023-37007
Published
Jan 22, 2025
Updated
Jan 28, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-617, T1499.004
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

Compare your product and version with the public record. A matching version still requires validation against your environment.

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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 exploitPublished

Weakness, pattern, technique

CWE-617Reachable Assertion
T1499.004Endpoint Denial of Service: Application or System Exploitation

Public exploit references

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

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo