Cyber Resilience

CVE-2022-28583

CriticalPublic PoCRCE

Published: 05 May 2022

Published
05 May 2022
Modified
21 November 2024
KEV Added
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Patch
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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 0.1871 95.4th percentile
Risk Priority 31 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2022-28583 is a critical-severity OS Command Injection (CWE-78) vulnerability in Totolink A7100Ru Firmware. Its CVSS base score is 9.8 (Critical).

Operationally, ranked in the top 4.6% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

Deeper analysis

CVE-2022-28583 is a command injection vulnerability, tracked under CWE-78, that affects the setWiFiWpsCfg interface in the TOTOLINK A7100RU router running firmware version 7.4cu.2313_b20191024. The flaw permits an attacker to supply a crafted payload that results in execution of arbitrary operating-system commands on the device.

An unauthenticated attacker with network access can exploit the issue over the network without user interaction or credentials. Successful exploitation grants full control over the router, enabling arbitrary command execution that can compromise confidentiality, integrity, and availability of the device and any attached network resources. The vulnerability carries a CVSS 3.1 base score of 9.8.

Public proof-of-concept code demonstrating the injection has been published on GitHub. The CVE’s EPSS score currently stands at 0.1871 with a recorded peak of 0.2031, indicating sustained but not sharply escalating exploitation interest since disclosure. No vendor advisory or patch information is referenced in the available sources.

EU & UK References

Vulnerability details

It is found that there is a command injection vulnerability in the setWiFiWpsCfg interface in TOTOlink A7100RU (v7.4cu.2313_b20191024) router, which allows an attacker to execute arbitrary commands through a carefully constructed payload.

CWE(s)
CWE-78

Related Threats

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

Affected Assets

totolink
a7100ru firmware
7.4cu.2313_b20191024

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.

SC-27 Platform-independent Applications
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.

SI-10 Information Input Validation
addresses: CWE-78

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

References