PT-2026-22268 · Tenda · Tenda F453

Ltzhust · CVE-2026-3273 · Published 2026-02-17 · Updated 2026-03-04

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 F453 version 1.0.0.3

Description A remote buffer overflow exists in the httpd component of the Tenda F453 router firmware. The issue is located within the formWrlsafeset function of the /goform/AdvSetWrlsafeset endpoint. Manipulation of the mit ssid index argument can trigger a buffer overflow. The exploit is publicly available.

Recommendations Update to a newer version that contains a fix for this vulnerability.

Exploit

Fix

Buffer Overflow

Weakness Enumeration

CWE-119

CWE-120

Related Identifiers

BDU:2026-08546

CVE-2026-3273

Affected Products

Tenda F453

References · 15

• 🔥 https://github.com/Litengzheng/vul_db/blob/main/F453/vul_73/README.md · Exploit
• https://osv.dev/vulnerability/CVE-2026-3273 · Vendor Advisory
• https://bdu.fstec.ru/vul/2026-08546 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-3273 · Security Note
• https://vuldb.com/?id.347997 · Note
• https://twitter.com/CVEnew/status/2027380242843644169 · Twitter Post
• https://twitter.com/CveTodo/status/2027199834055172145 · Twitter Post
• https://twitter.com/cracbot/status/2029149972772581618 · Twitter Post
• https://twitter.com/infoflowcloud/status/2027382249495154744 · Twitter Post
• https://tenda.com.cn · Note
• https://vuldb.com/?submit.759606 · Note
• https://twitter.com/CveFindCom/status/2027197521735332217 · Twitter Post
• https://t.me/CVEtracker/45898 · Telegram Post
• https://vuldb.com/?ctiid.347997 · Note
• https://twitter.com/cracbot/status/2028787769758388561 · Twitter Post