CVE-2024-24449Network attack vector

AMF crash via uninitialized NAS-PDU pointer

Published Nov 15, 2024 · Updated Nov 26, 2024

Denial of service in OpenAirInterface OAI CN5G AMF before 2.0.0 allows remote attackers to crash the AMF with a crafted InitialUEMessage. The NAS_PDU constructor leaves its pointer-typed pdu_bstring member uninitialized before message processing dereferences it. The message must reach the AMF through its N2 SCTP service; successful exploitation interrupts access and mobility management until restart.

CVSS severity6.5
Medium
EPSS probability0.43%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in OpenAirInterface OAI CN5G AMF before 2.0.0 allows remote attackers to crash the AMF with a crafted InitialUEMessage. The NAS_PDU constructor leaves its pointer-typed pdu_bstring member uninitialized before message processing dereferences it. The message must reach the AMF through its N2 SCTP service; successful exploitation interrupts access and mobility management until restart.

The record

CVE
CVE-2024-24449
Published
Nov 15, 2024
Updated
Nov 26, 2024
Vendor
OpenAirInterface Software Alliance
Product
OAI CN5G AMF
Classifications
CWE-824, T1499
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 15, 2024CVE publishedPublication date reported by the CVE source.
  2. Nov 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?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <2.0.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

OpenAirInterface Software Alliance · OAI CN5G AMFversion=0 <2.0.0

Published CVSS scores

6.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:R/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.

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

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-824Access of Uninitialized Pointer
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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