PT-2026-23886 · Tenda · Tenda Fh451

Ltzhuster · Published 2026-02-16 · Updated 2026-03-12 · CVE-2026-3677

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 FH451 version 1.0.0.9

Description A flaw exists in Tenda FH451 version 1.0.0.9 related to a stack-based buffer overflow. The issue is located in the fromSetCfm function within the /goform/setcfm file. Manipulation of the funcname/funcpara1 argument triggers the overflow, and the attack can be initiated remotely. An 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

Stack Overflow

Buffer Overflow

Weakness Enumeration

CWE-121

CWE-119

Related Identifiers

BDU:2026-06153

CVE-2026-3677

Affected Products

Tenda Fh451

References · 13

• 🔥 https://github.com/Litengzheng/vul_db/blob/main/FH451/vul_61/README.md · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-3677 · Security Note
• https://bdu.fstec.ru/vul/2026-06153 · Security Note
• https://osv.dev/vulnerability/CVE-2026-3677 · Vendor Advisory
• https://twitter.com/CveFindCom/status/2030413547881074749 · Twitter Post
• https://t.me/cveNotify/154627 · Telegram Post
• https://t.me/CVEtracker/46760 · Telegram Post
• https://vuldb.com/?submit.765329 · Note
• https://tenda.com.cn · Note
• https://vuldb.com/?id.349579 · Note
• https://twitter.com/CVEnew/status/2030747902046613964 · Twitter Post
• https://twitter.com/cracbot/status/2032049056101589304 · Twitter Post
• https://vuldb.com/?ctiid.349579 · Note