High severity8.8NVD Advisory· Published Apr 27, 2026· Updated Apr 30, 2026

CVE-2026-7100

Description

A flaw has been found in Tenda F456 1.0.0.5. The impacted element is the function fromNatlimitof of the file /goform/Natlimit of the component httpd. Executing a manipulation can lead to buffer overflow. The attack may be launched remotely. The exploit has been published and may be used.

AI Insight

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

Affected products

Tenda/F456 Firmware
cpe:2.3:o:tenda:f456_firmware:1.0.0.5:*:*:*:*:*:*:*
Tenda/F456llm-fuzzy
Range: = 1.0.0.5

Patches

Vulnerability mechanics

References

github.com/Litengzheng/vuldb_new/blob/main/F456/vul_138/README.mdnvdExploitThird Party Advisory
vuldb.com/submit/798473nvdThird Party AdvisoryVDB Entry
vuldb.com/vuln/359675nvdThird Party AdvisoryVDB Entry
vuldb.com/vuln/359675/ctinvdPermissions 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.

0.62%

VYPR risk score

Composite of severity, exploitation, and reach.

0.57high

cvss	0.572
epss	0.000
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-2026-7100

Credits

L(
LtzHuster (VulDB User)
reporter