PT-2026-21407 · Tenda · Tenda Hg9

Linxi666 · Published 2026-02-22 · Updated 2026-02-27 · CVE-2026-2906

Positive Technologies · (AI Summary)

CVSS v2.0

9.0

High

AV:N/AC:L/Au:S/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions Tenda HG9 300001138 (affected versions not specified)

Description A security issue exists in the Tenda HG9 300001138 router, specifically within the Samba Configuration Endpoint accessible through the /boaform/formSamba API endpoint. Improper handling of the sambaCap parameter leads to a stack-based buffer overflow. This allows for remote execution of arbitrary code or a denial of service. The exploit for this issue has been publicly released.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

DoS

Stack Overflow

Buffer Overflow

Weakness Enumeration

CWE-121

CWE-119

Related Identifiers

CVE-2026-2906

Affected Products

Tenda Hg9

References · 14

• 🔥 https://github.com/QIU-DIE/cve-nneeww/issues/8 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-2906 · Security Note
• https://osv.dev/vulnerability/CVE-2026-2906 · Vendor Advisory
• https://t.me/cveNotify/152749 · Telegram Post
• https://twitter.com/cracbot/status/2027337987110171081 · Twitter Post
• https://tenda.com.cn · Note
• https://vuldb.com/?submit.755193 · Note
• https://twitter.com/CveFindCom/status/2025400350832832941 · Twitter Post
• https://twitter.com/CVEnew/status/2025425444053655584 · Twitter Post
• https://twitter.com/CveTodo/status/2025398680937812045 · Twitter Post
• https://vuldb.com/?id.347215 · Note
• https://t.me/CVEtracker/45407 · Telegram Post
• https://vuldb.com/?ctiid.347215 · Note
• https://twitter.com/CVEarity/status/2025566370134671789 · Twitter Post