Cyber Resilience

CVE-2023-52028

CriticalPublic PoCRCE

Published: 11 January 2024

Published
11 January 2024
Modified
20 June 2025
KEV Added
Patch
CVSS Score v3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.2055 95.7th percentile
Risk Priority 32 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2023-52028 is a critical-severity OS Command Injection (CWE-78) vulnerability in Totolink A3700R Firmware. Its CVSS base score is 9.8 (Critical).

Operationally, ranked in the top 4.3% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

Deeper analysis

TOTOlink A3700R firmware version 9.1.2u.5822_B20200513 contains a remote command execution vulnerability in the setTracerouteCfg function. The flaw is an instance of OS command injection (CWE-78) that permits unauthenticated attackers to supply crafted input leading to arbitrary command execution on the device. It carries a CVSS 3.1 base score of 9.8, reflecting network attack vector, low complexity, and no required privileges or user interaction.

An attacker with network reachability to the router can invoke setTracerouteCfg over the web interface or related endpoints and execute operating-system commands with the privileges of the web server process. Successful exploitation yields full control over the device, enabling actions such as configuration changes, traffic interception, persistence, or use as an internal network pivot.

The associated EPSS score stands at 0.2055 with an identical recorded peak, indicating sustained but not sharply increasing exploitation interest since disclosure. Public technical write-ups detail the injection vector but provide no information on vendor patches or official mitigation steps.

EU & UK References

Vulnerability details

TOTOlink A3700R v9.1.2u.5822_B20200513 was discovered to contain a remote command execution (RCE) vulnerability via the setTracerouteCfg function.

CWE(s)

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

totolink
a3700r firmware
9.1.2u.5822_b20200513

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-78

Platform-independent apps typically execute inside a managed runtime or sandbox that restricts direct OS command execution, reducing the ability to exploit OS command injection.

addresses: CWE-78

Validates inputs to block special elements that would alter OS command execution.

References