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Description

An authenticated OS command injection vulnerability exists in the BigPond Cable (BPA) WAN configuration module in TL-WR940N v6 due to improper sanitization of user input. An attacker with administrative access may exploit this issue to execute arbitrary system commands with elevated privileges.

PUBLISHED Reserved 2026-06-05 | Published 2026-06-16 | Updated 2026-06-16 | Assigner TPLink




HIGH: 8.5CVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Problem types

CWE-78 Improper neutralization of special elements used in an OS command ('OS command injection')

Product status

Default status
unaffected

Any version before V6_260528
affected

Credits

Duong Ton Hoang Khang of Sacombank finder

References

www.tp-link.com/en/support/download/tl-wr940n/v6/ patch

www.tp-link.com/us/support/download/tl-wr940n/v6/ patch

www.tp-link.com/us/support/faq/5131/ vendor-advisory

cve.org (CVE-2026-11410)

nvd.nist.gov (CVE-2026-11410)

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