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CVE-2023-37005

MEDIUM
5.3
CVSS Score
Published: January 22, 2025 at 12:00 AM UTC
Updated: June 17, 2026 at 06:07 AM UTC
1 product affected across 1 vendorOpen5GS

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Severity
MEDIUM5.3
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

Description

Open5GS MME versions <= 2.6.4 contain an assertion that can be remotely triggered via a malformed ASN.1 packet over the S1AP interface. An attacker may send an `Initial Context Setup Failure` message missing a required `MME_UE_S1AP_ID` field to repeatedly crash the MME, resulting in denial of service.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Open5GS· OPEN5GS
95%
v ≤ 2.6.4

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

ExploitTechnical DescriptionThird Party Advisory
Source: [email protected]
https://cellularsecurity.org/ransacked

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.3MEDIUMCISA-ADP
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
LOW
Availability
LOW
Vector?

Quick Info

StatusANALYZED
CWE
CWE-617

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