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CVE-2021-42884

TOTOLINK EX1200T V4.1.2cu.5215 contains a remote command injection vulnerability in function...

9.8 Critical

TOTOLINK EX1200T V4.1.2cu.5215 contains a remote command injection vulnerability in function setDeviceName of the file global.so which can control thedeviceName to attack.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
High

Exploit likelihood

2.40%Up 1.3 points since Jun 4, 2022
90%50%10%1%

What each source reports

NVD Score used 9.8

TOTOLINK EX1200T V4.1.2cu.5215 contains a remote command injection vulnerability in function setDeviceName of the file global.so which can control thedeviceName to attack.

Record
CVE-2021-42884
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0
7.5 HighAV:N/AC:L/Au:N/C:P/I:P/A:P
Weakness
CWE-78
Updated
2026-11-02
CVE List No score

TOTOLINK EX1200T V4.1.2cu.5215 contains a remote command injection vulnerability in function setDeviceName of the file global.so which can control thedeviceName to attack.

Record
CVE-2021-42884
Updated
2026-11-02
EUVDEUVD-2021-29839 No score

TOTOLINK EX1200T V4.1.2cu.5215 contains a remote command injection vulnerability in function setDeviceName of the file global.so which can control thedeviceName to attack.

Record
EUVD-2021-29839
Updated
2026-11-03
GitHub AdvisoriesGHSA-vv6c-48q6-6p34 9.8

TOTOLINK EX1200T V4.1.2cu.5215 contains a remote command injection vulnerability in function...

TOTOLINK EX1200T V4.1.2cu.5215 contains a remote command injection vulnerability in function setDeviceName of the file global.so which can control thedeviceName to attack.

Record
GHSA-vv6c-48q6-6p34
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-77
Updated
2026-11-02

Affected products

History

History
RecordedChangedSources
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2021-42884 is a critical vulnerability (CVSS 9.8) in Totolink Ex1200t Firmware, published June 3, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.40%, the 84th percentile. No source names a fixed version.

References

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