CVE-2026-3399

Name: CVE-2026-3399
Creator: NVD / NIST
Published: 2026-03-01T23:16:02.06+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.4/10EPSS 0.89%

Last modified Jun 17, 2026

CVE-2026-3399 is a high-severity vulnerability rated 7.4/10 on the CVSS scale. A vulnerability was identified in Tenda F453 1.0.0.3. Affected by this vulnerability is the function fromGstDhcpSetSer of the file /goform/GstDhcpSetSer of the component httpd. EPSS estimates a 0.89% chance of exploitation in the next 30 days.

Description

A vulnerability was identified in Tenda F453 1.0.0.3. Affected by this vulnerability is the function fromGstDhcpSetSer of the file /goform/GstDhcpSetSer of the component httpd. The manipulation of the argument dips leads to buffer overflow. The attack may be initiated remotely. The exploit is publicly available and might be used.

Metrics

CVSS 3.1

8.8/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS 4.0

7.4/10

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS Probability

0.89%

54.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Tenda	F453 Firmware	1.0.0.3

References

https://github.com/Litengzheng/vul_db/blob/main/F453/vul_83/README.mdExploit, Third Party Advisory
https://vuldb.com/?ctiid.348294Permissions Required, VDB Entry
https://vuldb.com/?id.348294Third Party Advisory, VDB Entry
https://vuldb.com/?submit.759631Third Party Advisory, VDB Entry
https://www.tenda.com.cn/Product

Timeline

Published: Mar 1, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-3399?

How severe is CVE-2026-3399?

CVE-2026-3399 has a CVSS score of 7.4/10 (HIGH severity). The EPSS model estimates a 0.89% probability of exploitation in the next 30 days.

How do I fix CVE-2026-3399?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-3399?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST