CVE-2023-4882Network attack vector

Unauthenticated service crash via crafted VNF registration

Published Oct 3, 2023 · Updated Sep 19, 2024

Denial of service in Open5GS 2.4.10 and earlier allows remote attackers to crash a core-network service by registering a crafted VNF value. The public record states that the VNF value reaches args_assets() in arg-log.php, which invokes args-abort.c and terminates the service. Network access without authentication is sufficient, and successful exploitation interrupts only service availability.

CVSS severity7.5
High
EPSS probability0.61%
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 Open5GS 2.4.10 and earlier allows remote attackers to crash a core-network service by registering a crafted VNF value. The public record states that the VNF value reaches args_assets() in arg-log.php, which invokes args-abort.c and terminates the service. Network access without authentication is sufficient, and successful exploitation interrupts only service availability.

The record

CVE
CVE-2023-4882
Published
Oct 3, 2023
Updated
Sep 19, 2024
Vendor
Open5GS
Product
Open5GS
Classifications
CWE-404, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 3, 2023CVE publishedPublication date reported by the CVE source.
  2. Sep 19, 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=2.4.10 and prior

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Open5GS · Open5GSversion=2.4.10 and prior

Published CVSS scores

7.5Spanish National Cybersecurity Institute, S.A. (INCIBE)CVSS:3.1/AV:N/AC:L/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.

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-404Improper Resource Shutdown or Release
T1499.004Endpoint Denial of Service Application or System Exploitation

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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