CVE-2024-23690

HighPublic PoCRCE

Published: 04 February 2025

Published

04 February 2025

Modified

15 April 2026

KEV Added

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Patch

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CVSS Score v3.1 7.2 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

EPSS Score 0.0084 75.1th percentile

Risk Priority 15 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2024-23690 is a high-severity OS Command Injection (CWE-78) vulnerability. Its CVSS base score is 7.2 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked in the top 24.9% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

The strongest mitigations our analysis identified are NIST 800-53 CM-7 (Least Functionality) and SA-22 (Unsupported System Components).

Deeper analysis

CVE-2024-23690 is a command injection vulnerability (CWE-78) in the Telnet interface of the end-of-life Netgear FVS336Gv2 and FVS336Gv3 VPN firewalls. Published on 2025-02-04, it carries a CVSS v3.1 base score of 7.2 (AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H), indicating high severity with network accessibility, low attack complexity, and significant impacts on confidentiality, integrity, and availability.

An authenticated remote attacker can exploit the vulnerability by sending crafted "util backup_configuration" commands over Telnet, enabling execution of arbitrary OS commands as root. This requires high privileges (PR:H) but no user interaction, allowing full system compromise on affected devices.

The primary advisory is available at https://vulncheck.com/advisories/netgear-fvs336g-rce. As the devices are end-of-life, no vendor patches are referenced.

EU & UK References

🇪🇺 ENISA EUVD: EUVD-2024-21151

Vulnerability details

The end-of-life Netgear FVS336Gv2 and FVS336Gv3 are affected by a command injection vulnerability in the Telnet interface. An authenticated and remote attacker can execute arbitrary OS commands as root over Telnet by sending crafted "util backup_configuration" commands.

CWE(s): CWE-78

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

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 →

T1059.004 Unix Shell Execution

Adversaries may abuse Unix shell commands and scripts for execution.

attack.mitre.org →

Why these techniques?

Command injection in public-facing Telnet service directly enables remote exploitation of the firewall (T1190) and arbitrary Unix shell command execution as root (T1059.004).

Confidence: HIGH · MITRE ATT&CK Enterprise v18.1