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© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2026-2871

25
FAUCET Score

CVE-2026-2871 is a high-severity stack-based buffer overflow vulnerability in Tenda A21 1.0.0.0 firmware, specifically within the fromSetIpMacBind function of the /goform/SetIpMacBind file. This flaw allows a remote attacker to achieve full compromise (confidentiality, integrity, availability) by manipulating the 'list' argument. While public exploit code exists, there is no evidence of active exploitation, and it has received minimal community or media attention.

Impacted Technologies

VendorProductVersion(s)CPE
1.0.0.0CPE matchmatch criteria
cpe:2.3:o:tenda:a21_firmware:1.0.0.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 4.0

7.4HIGH

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
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
VS Confidentiality
HIGH
VS Integrity
HIGH
VS Availability
HIGH
SS Confidentiality
NONE
SS Integrity
NONE
SS Availability
NONE
Exploit Maturity
PROOF_OF_CONCEPT
CvssVersion
4.0

Exploit Intelligence

EPSS Score
0.68%
Probability of exploitation in next 30 days
EPSS Percentile
48.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0068 is in the 40th percentile among its peer group of 17,844 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

github_advisoryworkaround availablevia nvd_reference
View patch

References

github.com / QIU-DIE/cve-nneeww/issues/2
ExploitIssue TrackingMitigationThird Party Advisory
vuldb.com
Permissions RequiredVDB Entry
vuldb.com
Third Party AdvisoryVDB Entry
vuldb.com
Third Party AdvisoryVDB Entry
vuldb.com
Third Party AdvisoryVDB Entry
tenda.com.cn
Product