PT-2026-23888 · Tenda · Tenda Fh451

Ltzhuster · Published 2026-02-16 · Updated 2026-03-12 · CVE-2026-3679

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 stack-based buffer overflow exists in the formQuickIndex function of the /goform/QuickIndex file. Manipulation of the mit linktype/PPPOEPassword argument can trigger this issue, allowing for remote exploitation. The exploit is publicly available.

Recommendations Update to a newer version that contains a fix for this vulnerability. As a temporary workaround, restrict access to the /goform/QuickIndex file to minimize the risk of exploitation. Avoid using the mit linktype/PPPOEPassword argument in the affected file until the issue is resolved.

Exploit

Fix

Stack Overflow

Buffer Overflow

Weakness Enumeration

CWE-121

CWE-119

Related Identifiers

BDU:2026-06154

CVE-2026-3679

Affected Products

Tenda Fh451

References · 13

• 🔥 https://github.com/Litengzheng/vul_db/blob/main/FH451/vul_63/README.md · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-3679 · Security Note
• https://osv.dev/vulnerability/CVE-2026-3679 · Vendor Advisory
• https://bdu.fstec.ru/vul/2026-06154 · Security Note
• https://twitter.com/cracbot/status/2032049059612270667 · Twitter Post
• https://vuldb.com/?id.349581 · Note
• https://vuldb.com/?submit.765331 · Note
• https://vuldb.com/?ctiid.349581 · Note
• https://tenda.com.cn · Note
• https://t.me/cveNotify/154630 · Telegram Post
• https://t.me/CVEtracker/46762 · Telegram Post
• https://twitter.com/CVEnew/status/2030747900335300720 · Twitter Post
• https://twitter.com/CveFindCom/status/2030429049919594609 · Twitter Post