PT-2026-5372 · Tenda · Tenda Ac21

Lx-Lx · Publicado 2026-01-29 · Atualizado 2026-01-30 · CVE-2026-1638

Positive Technologies (AI Summary)

CVSS v3.1

8.8

Alta

Vetor base

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

Name of the Vulnerable Software and Affected Versions Tenda AC21 versions 1.1.1.1/1.dmzip/16.03.08.16

Description A security flaw exists in the Tenda AC21 router. The issue is related to command injection within the mDMZSetCfg function, located in the /goform/mDMZSetCfg file. Manipulation of the dmzIp argument can lead to remote code execution. The exploit for this issue has been publicly released and may be used in attacks.

Recommendations Update to a newer version that contains a fix for this vulnerability. As a temporary workaround, consider restricting access to the /goform/mDMZSetCfg file.

Exploit

Correção

Special Elements Injection

Command Injection

Enumeração de Fraquezas

CWE-74

CWE-77

Identificadores relacionados

CVE-2026-1638

Produtos afetados

Tenda Ac21

Referências · 12

• 🔥 https://github.com/LX-LX88/cve/issues/26 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-1638 · Nota de Segurança
• https://osv.dev/vulnerability/CVE-2026-1638 · Aviso do Fabricante
• https://vuldb.com/?ctiid.343417 · Nota
• https://vuldb.com/?id.343417 · Nota
• https://twitter.com/vuldb/status/2017261670507442347 · Publicação no Twitter
• https://tenda.com.cn · Nota
• https://vuldb.com/?submit.740871 · Nota
• https://twitter.com/VulmonFeeds/status/2017050012698751229 · Publicação no Twitter
• https://t.me/cveNotify/150341 · Publicação no Telegram
• https://t.me/CVEtracker/43263 · Publicação no Telegram
• https://twitter.com/CVEnew/status/2017024589264801875 · Publicação no Twitter