CVE-2026-2871

Name: CVE-2026-2871
Creator: NVD / NIST
Published: 2026-02-21T16:16:05.133+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.4/10EPSS 0.68%

Last modified Jun 17, 2026

CVE-2026-2871 is a high-severity vulnerability rated 7.4/10 on the CVSS scale. A weakness has been identified in Tenda A21 1.0.0.0. This affects the function fromSetIpMacBind of the file /goform/SetIpMacBind. EPSS estimates a 0.68% chance of exploitation in the next 30 days.

Description

A weakness has been identified in Tenda A21 1.0.0.0. This affects the function fromSetIpMacBind of the file /goform/SetIpMacBind. This manipulation of the argument list causes stack-based buffer overflow. The attack is possible to be carried out remotely. The exploit has been made available to the public and could be used for attacks.

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

0.68%

47.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Tenda	A21 Firmware	1.0.0.0

References

https://github.com/QIU-DIE/cve-nneeww/issues/2Exploit, Issue Tracking, Mitigation, Third Party Advisory
https://vuldb.com/?ctiid.347108Permissions Required, VDB Entry
https://vuldb.com/?id.347108Third Party Advisory, VDB Entry
https://vuldb.com/?submit.754630Third Party Advisory, VDB Entry
https://vuldb.com/?submit.754631Third Party Advisory, VDB Entry
https://www.tenda.com.cn/Product

Timeline

Published: Feb 21, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-2871?

How severe is CVE-2026-2871?

CVE-2026-2871 has a CVSS score of 7.4/10 (HIGH severity). The EPSS model estimates a 0.68% probability of exploitation in the next 30 days.

How do I fix CVE-2026-2871?

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-2026-2871?

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

Scan your code now

Source: NVD / NIST