CVE-2026-2870

HIGH EPSS 43.7%
Published Feb 21, 20264mo ago · Modified Jun 17, 20262w ago
7.4 CVSS 4.0
High
Find Similar
Published Feb 21, 2026 4mo ago
Last Modified Jun 17, 2026 2w ago

Description

A security flaw has been discovered in Tenda A21 1.0.0.0. Affected by this issue is the function set_qosMib_list of the file /goform/formSetQosBand. The manipulation of the argument list results in stack-based buffer overflow. The attack can be executed remotely. The exploit has been released to the public and may be used for attacks.

CVSS Details

Base Score
7.4
Exploitability
—
Impact
—
Vector string
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
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope X

Threat Intelligence

EPSS Exploit Probability
43.7% percentile
Exploit & Patch Status
Public Exploit Known
No Patch Available

Weaknesses 2

CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer Memory Safety
CWE-121

Affected Products 2

VendorProductVersionRange
tendaa21_firmware1.0.0.0any
tendaa21*any

References 5

  • github.com https://github.com/QIU-DIE/cve-nneeww/issues/1
    ExploitIssue TrackingMitigationThird Party Advisory
  • vuldb.com https://vuldb.com/?ctiid.347107
    Permissions RequiredVDB Entry
  • vuldb.com https://vuldb.com/?id.347107
    Third Party AdvisoryVDB Entry
  • vuldb.com https://vuldb.com/?submit.754627
    Third Party AdvisoryVDB Entry
  • tenda.com.cn https://www.tenda.com.cn/
    Product

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.