PT-2026-21885 · Tenda · Tenda F453

Ltzhust · Published 2026-02-25 · Updated 2026-03-02 · CVE-2026-3169

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 security issue has been identified in the Tenda F453 router firmware version 1.0.0.3. The issue resides within the fromSafeEmailFilter function located in the /goform/SafeEmailFilter API endpoint of the httpd component. Manipulation of the page parameter can lead to a buffer overflow. Remote exploitation is possible. The exploit has been publicly disclosed.

Recommendations Update to a newer version that contains a fix for this vulnerability. As a temporary workaround, consider disabling the httpd component or restricting access to the /goform/SafeEmailFilter endpoint until a patch is available.

Exploit

Fix

RCE

Buffer Overflow

Weakness Enumeration

CWE-119

CWE-120

Related Identifiers

BDU:2026-02456

CVE-2026-3169

Affected Products

Tenda F453

References · 14

• 🔥 https://github.com/Litengzheng/vul_db/blob/main/F453/vul_68/README.md · Exploit
• https://osv.dev/vulnerability/CVE-2026-3169 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-3169 · Security Note
• https://bdu.fstec.ru/vul/2026-02456 · Security Note
• https://t.me/cveNotify/153123 · Telegram Post
• https://vuldb.com/?id.347676 · Note
• https://twitter.com/VulmonFeeds/status/2026653011280298337 · Twitter Post
• https://t.me/CVEtracker/45711 · Telegram Post
• https://tenda.com.cn · Note
• https://vuldb.com/?submit.759597 · Note
• https://vuldb.com/?ctiid.347676 · Note
• https://twitter.com/CveTodo/status/2026574952330108949 · Twitter Post
• https://twitter.com/CVEnew/status/2026641324569411831 · Twitter Post
• https://twitter.com/cracbot/status/2028425240251187345 · Twitter Post