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TI-2021-18684 Aliases CVE-2021-42232GHSA-7jqw-x96f-m5vv

TP-Link Archer A7 Archer A7(US)_V5_210519 is affected by a command injection…

Priority MEDIUM 49CWE-78Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-78.

Summary

TP-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.

Why it matters now

EPSS 0.04195 91st percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:o:tp-link:archer_a7_firmware:210519:*:*:*:*:*:*:*210519VulnerableTP-Link
cpe:2.3:h:tp-link:archer_a7:v5:*:*:*:*:*:*:*v5Running onTP-Link
  • cpe:2.3:o:tp-link:archer_a7_firmware:210519:*:*:*:*:*:*:* Versions 210519 Vulnerable ·TP-Link
  • cpe:2.3:h:tp-link:archer_a7:v5:*:*:*:*:*:*:* Versions v5 Running on ·TP-Link

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-42232
  2. 2026-10-03 Alias added: GHSA-7jqw-x96f-m5vv

References

Other 1

  • TI-2021-08785 Protection mechanism failure in TP-Link Archer A7 CVSS 3.1HIGH 8.1
  • TI-2020-04723 Link following in TP-Link Archer A7 v5 CVSS 3.1MEDIUM 6.2

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences