PT-2026-30462 · Tenda · Tenda I12

Ltzhust · Published 2026-04-05 · Updated 2026-04-06 · CVE-2026-5609

Positive Technologies (AI Summary)

CVSS v2.0

9.0

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Tenda i12 version 1.0.0.11(3862)

Description A flaw exists in the Tenda i12 device due to a stack-based buffer overflow in the formwrlSSIDset function within the /goform/wifiSSIDset file of the Parameter Handler component. The vulnerability is triggered by manipulating the index/wl radio argument, allowing for remote exploitation. An exploit for this issue has been published.

Recommendations Update to a newer version that contains a fix for this vulnerability. As a temporary workaround, consider restricting access to the formwrlSSIDset function until a patch is available.

Exploit

Fix

Stack Overflow

Buffer Overflow

Weakness Enumeration

CWE-121

CWE-119

Related Identifiers

BDU:2026-04783

CVE-2026-5609

Affected Products

Tenda I12

References · 11

• 🔥 https://github.com/Litengzheng/vuldb_new/blob/main/i12/vul_107/README.md · Exploit
• https://bdu.fstec.ru/vul/2026-04783 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-5609 · Security Note
• https://tenda.com.cn · Note
• https://twitter.com/CveFindCom/status/2040983557401727425 · Twitter Post
• https://vuldb.com/vuln/355400/cti · Note
• https://vuldb.com/vuln/355400 · Note
• https://twitter.com/vuldb/status/2040831226966348118 · Twitter Post
• https://twitter.com/infoflowcloud/status/2040999551104848278 · Twitter Post
• https://vuldb.com/submit/785337 · Note
• https://twitter.com/CVEnew/status/2040998354394759179 · Twitter Post