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CVE-2021-44625

A Buffer Overflow vulnerability exists in TP-LINK WR-886N 20190826 2.3.8 in /cloud_config...

9.8 Critical

A Buffer Overflow vulnerability exists in TP-LINK WR-886N 20190826 2.3.8 in /cloud_config/cloud_device/info interface, which allows a malicious user to executee arbitrary code on the system via a crafted post request.

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

1.78%Up 0.9 points since Mar 10, 2022
90%50%10%1%

What each source reports

NVD Score used 9.8

A Buffer Overflow vulnerability exists in TP-LINK WR-886N 20190826 2.3.8 in /cloud_config/cloud_device/info interface, which allows a malicious user to executee arbitrary code on the system via a crafted post request.

Record
CVE-2021-44625
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
10.0 HighAV:N/AC:L/Au:N/C:C/I:C/A:C
Weakness
CWE-120
Updated
2026-11-02
CVE List No score

A Buffer Overflow vulnerability exists in TP-LINK WR-886N 20190826 2.3.8 in /cloud_config/cloud_device/info interface, which allows a malicious user to executee arbitrary code on the system via a crafted post request.

Record
CVE-2021-44625
Updated
2026-11-02
EUVDEUVD-2021-31446 No score

A Buffer Overflow vulnerability exists in TP-LINK WR-886N 20190826 2.3.8 in /cloud_config/cloud_device/info interface, which allows a malicious user to executee arbitrary code on the system via a crafted post request.

Record
EUVD-2021-31446
Updated
2026-11-03
GitHub AdvisoriesGHSA-xxqw-qwfj-97rc 9.8

A Buffer Overflow vulnerability exists in TP-LINK WR-886N 20190826 2.3.8 in /cloud_config...

A Buffer Overflow vulnerability exists in TP-LINK WR-886N 20190826 2.3.8 in /cloud_config/cloud_device/info interface, which allows a malicious user to executee arbitrary code on the system via a crafted post request.

Record
GHSA-xxqw-qwfj-97rc
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-120
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-2021-44625 is a critical vulnerability (CVSS 9.8) in Tp-link Tl-wr886n Firmware, published March 9, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.78%, the 78th percentile. No source names a fixed version.

References

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