High severity8.8NVD Advisory· Published Mar 1, 2026· Updated Jun 17, 2026

CVE-2026-3399

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Tenda/F453 Firmwarev52 versions
cpe:2.3:o:tenda:f453_firmware:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:tenda:f453_firmware:*:*:*:*:*:*:*:*range: 1.0.0.3
- cpe:2.3:o:tenda:f453_firmware:1.0.0.3:*:*:*:*:*:*:*
Tenda/F453llm-fuzzy
Range: 1.0.0.3

Patches

Vulnerability mechanics

References

github.com/Litengzheng/vul_db/blob/main/F453/vul_83/README.mdnvdExploitThird Party Advisory
vuldb.comnvdThird Party AdvisoryVDB Entry
vuldb.comnvdThird Party AdvisoryVDB Entry
vuldb.comnvdPermissions RequiredVDB Entry
www.tenda.com.cnnvdProduct

News mentions

No linked articles in our index yet.

Severity

HighCVSS v3.1

8.8/ 10

CVSS v47.4

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

Attack vector: Network
Complexity: Low
Privileges: Low
User interaction: None
Scope: Unchanged
Confidentiality: High
Integrity: High
Availability: High

Vector

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

EPSS

Probability of exploitation in the next 30 days.

3.25%

VYPR risk score

Composite of severity, exploitation, and reach.

0.57high

cvss	0.572
epss	0.003
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000

Weaknesses

CWE-119
Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE-120
Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

CVE ID

CVE-2026-3399

Credits

L(
LtzHust2 (VulDB User)
reporter