Security readout for executives and security teams
Plain-English summary
This flaw can let a network-adjacent attacker crash Magma's MME by sending malformed signaling that omits an expected identifier. The impact is denial of service, not data theft or code execution. Business urgency depends on whether your Magma mobile-core components are reachable from untrusted or compromised RAN-side systems.
Executive priority
Treat as a moderate availability risk for Magma-based mobile networks. Prioritize patching where MME downtime would disrupt subscriber service or where RAN-side access is not tightly controlled. There is no supplied evidence of active exploitation.
Technical view
CVE-2023-37028 is a CWE-476 null pointer dereference in Magma MME <= 1.8.0. The CVE states it is fixed in v1.9 commit 08472ba98b8321f802e95f5622fa90fec2dea486. CVSS 3.1 is 6.5: adjacent network, low complexity, no privileges, no user interaction, high availability impact.
Likely exposure
Exposure appears limited to deployments running Magma MME versions at or below 1.8.0 with S1AP adjacency reachable from eNodeB or RAN-side entities. The bundle does not identify CPEs or downstream vendor packages, so asset owners must map Magma usage directly.
Exploitation context
CISA KEV status is false, and the supplied sources do not state active exploitation. The described attack requires adjacent network positioning and affects availability only. No evidence in the bundle supports confidentiality impact, integrity impact, or remote internet exploitation.
Researcher notes
The record identifies the affected component and fix commit, but affected vendor/product metadata is sparse. Avoid assuming downstream package names or exploit prevalence. Validation should focus on version confirmation, patch presence, network adjacency, and operational evidence of MME instability.
Mitigation direction
- Upgrade Magma to a version containing the v1.9 fix commit.
- Check vendor or project guidance for supported patched releases.
- Restrict MME S1AP adjacency to trusted RAN-side systems only.
- Monitor MME crash, restart, and availability alerts.
- Prioritize operational resilience for affected mobile-core deployments.
Validation and detection
- Inventory Magma MME deployments and record exact versions.
- Confirm whether version is <= 1.8.0.
- Verify the v1.9 fix commit or equivalent patch is present.
- Review MME logs for unexplained crashes or restarts.
- Confirm only trusted RAN-side peers can reach S1AP services.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-476: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2023-37028 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Medium
- CVSS
- 6.5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H2.83.6Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
6.5MediumVector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://cellularsecurity.org/ransackedCVE reference
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
NULL Pointer Dereference
NULL Pointer Dereference represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.