Cyber Resilience

CVE-2021-44247

CriticalPublic PoCRCE

Published: 04 February 2022

Published
04 February 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 0.2647 96.4th percentile
Risk Priority 35 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-44247 is a critical-severity Command Injection (CWE-77) vulnerability in Totolink A720R Firmware. Its CVSS base score is 9.8 (Critical).

Operationally, ranked in the top 3.6% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

EU & UK References

Vulnerability details

Totolink devices A3100R v4.1.2cu.5050_B20200504, A830R v5.9c.4729_B20191112, and A720R v4.1.5cu.470_B20200911 were discovered to contain command injection vulnerability in the function setNoticeCfg. This vulnerability allows attackers to execute arbitrary commands via the IpFrom parameter.

CWE(s)
CWE-77

Related Threats

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

Affected Assets

totolink
a720r firmware
4.1.5cu.470_b20200911
totolink
a830r firmware
5.9c.4729_b20191112
totolink
a3100r firmware
4.1.2cu.5050_b20200504

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References