Cyber Resilience

CVE-2023-4883

Open5Gs ≤ 2.4.10

Published
03 October 2023
Modified
21 November 2024
CVSS Score v3.1 7.5
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS Score 0.0052 41th percentile
Risk Priority 58 floored blend · peak EPSS

Summary

CVE-2023-4883 is a high-severity Release of Invalid Pointer or Reference (CWE-763) vulnerability in Open5Gs Open5Gs. Its CVSS base score is 7.5 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploitation for Privilege Escalation (T1068); ranked at the 41th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability Data

Invalid pointer release vulnerability. Exploitation of this vulnerability could allow an attacker to interrupt the correct operation of the service by sending a specially crafted json string to the VNF (Virtual Network Function), and triggering the ogs_sbi_message_free function, which could…

more

cause a service outage.

CWE(s)
CWE-763

Related Threats

MITRE ATT&CK Enterprise Techniques

T1068 Exploitation for Privilege Escalation Privilege Escalation
Adversaries may exploit software vulnerabilities in an attempt to elevate privileges.
attack.mitre.org →
T1190 Exploit Public-Facing Application Initial Access
Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.
attack.mitre.org →
T1203 Exploitation for Client Execution Execution
Adversaries may exploit software vulnerabilities in client applications to execute code.
attack.mitre.org →
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2025-29646Same product: Open5Gs Open5Gs
CVE-2025-44952Same product: Open5Gs Open5Gs
CVE-2025-44951Same product: Open5Gs Open5Gs
CVE-2024-34476Same product: Open5Gs Open5Gs
CVE-2026-2521Same product: Open5Gs Open5Gs
CVE-2026-2522Same product: Open5Gs Open5Gs
CVE-2026-8746Same product: Open5Gs Open5Gs
CVE-2024-40130Same product: Open5Gs Open5Gs
CVE-2024-40129Same product: Open5Gs Open5Gs
CVE-2026-8186Same product: Open5Gs Open5Gs

Affected Assets

open5gs
open5gs
≤ 2.4.10

Mitigating Controls

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.PS-06 mostly match
prevents

Secure SDLC practices directly prevent invalid pointer release errors during development.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

A.8.29 Security testing in development and acceptance mostly match
finds

Security testing can detect invalid pointer releases before release.

A.8.25 Secure development life cycle partial match
prevents

Secure SDLC practices can mandate proper memory-management APIs and reviews that catch incorrect deallocation.

A.8.26 Application security requirements partial match
prevents

Application security requirements can specify correct use of release functions and pointer validation.

A.8.27 Secure system architecture and engineering principles partial match
prevents

Secure architecture principles include safe memory handling and resource-lifetime rules.

A.8.28 Secure coding partial match
prevents

Secure coding standards directly prohibit mismatched or incorrect pointer-release calls.

References