Cyber Resilience

CVE-2022-28582

CriticalPublic PoCRCE

Published: 05 May 2022

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

Summary

CVE-2022-28582 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-2022-28582 is a command injection vulnerability, tracked as CWE-78, that affects the setWiFiSignalCfg interface in the TOTOLINK A7100RU router running firmware version v7.4cu.2313_b20191024. The flaw received a CVSS 3.1 base score of 9.8, reflecting network attack vector, low attack complexity, and no required privileges or user interaction.

An unauthenticated attacker with network access can supply a crafted payload to the affected interface and thereby execute arbitrary operating-system commands on the device. Public proof-of-concept material is available that demonstrates the injection.

The EPSS score for this CVE currently stands at 0.1871 with a recorded peak of 0.2031. No official vendor advisory or patch information is provided in the listed references.

EU & UK References

Vulnerability details

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

CWE(s)

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.

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