CVE-2021-42232

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Summary

CVECVE-2021-42232
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2022-08-23 01:15:07 UTC
Updated2026-07-09 01:17:04 UTC
DescriptionTP-Link Archer A7 Archer A7(US)_V5_210519 is affected by a command injection vulnerability in /usr/bin/tddp. The vulnerability is caused by the program taking part of the received data packet as part of the command. This will cause an attacker to execute arbitrary commands on the router.

Risk And Classification

Primary CVSS: v3.1 9.8 CRITICAL from [email protected]

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS: 0.021800000 probability, percentile 0.802590000 (date 2026-07-13)

Problem Types: CWE-78 | n/a

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Hardware Tp-link Archer A7 v5 All All All
Operating System Tp-link Archer A7 Firmware 210519 All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
IoT/Archer A7(US)_V5_20519_tddp.md at main · mQaLeX/IoT · GitHub af854a3a-2127-422b-91ae-364da2661108 github.com
Archer MITRE archer.com
TP-Link Canada - WiFi Networking Equipment for Home & Business MITRE tp-link.com
IoT/Archer A7(US)_V5_20519_tddp.md at main · mQaLeX/IoT · GitHub MITRE github.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
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