High severity · published Feb 25, 2026
CVE-2026-3169
Tenda F453 httpd SafeEmailFilter fromSafeEmailFilter buffer overflow
8.8
CVSS
0.7%
EPSS
No
On KEV
Description
A security vulnerability has been detected in Tenda F453 1.0.0.3. This impacts the function fromSafeEmailFilter of the file /goform/SafeEmailFilter of the component httpd. The manipulation of the argument page leads to buffer overflow. Remote exploitation of the attack is possible. The exploit has been disclosed publicly and may be used.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 54% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
F4
F453 · Tenda
1.0.0.3 · source: vendor
FF
F453 Firmware · Tenda
1.0.0.3 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-3169
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-3169
Exploit
https://github.com/Litengzheng/vul_db/blob/main/F453/vul_68/README.md
Permissions Required
https://vuldb.com/?ctiid.347676
Third Party Advisory
https://vuldb.com/?id.347676
Third Party Advisory
https://vuldb.com/?submit.759597
Product
https://www.tenda.com.cn/
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