CVE-2023-37368Network attack vector

Service interruption via unchecked NULL pointer

Published Sep 8, 2023 · Updated Sep 26, 2024

NULL-pointer dereference in Samsung Exynos processors and modems allows remote attackers to interrupt service via a malformed NR MM packet. The Shannon MM Task processes the packet without validating a NULL pointer, causing abnormal termination when that pointer is dereferenced. Unauthenticated network reachability to the NR mobility-management path is sufficient, and the documented consequence is availability loss only.

CVSS severity5.9
Medium
EPSS probability0.55%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

NULL-pointer dereference in Samsung Exynos processors and modems allows remote attackers to interrupt service via a malformed NR MM packet. The Shannon MM Task processes the packet without validating a NULL pointer, causing abnormal termination when that pointer is dereferenced. Unauthenticated network reachability to the NR mobility-management path is sufficient, and the documented consequence is availability loss only.

The record

CVE
CVE-2023-37368
Published
Sep 8, 2023
Updated
Sep 26, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-476, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 8, 2023CVE publishedPublication date reported by the CVE source.
  2. Sep 26, 2024Record 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 privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
5.9MITRECVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-476NULL Pointer Dereference
T1499.004Endpoint Denial of Service: Application or System Exploitation Weakness

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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