CVE-2026-3974 identifies a high-severity stack-based buffer overflow vulnerability (CVSS 8.8) in the Tenda W3 1.0.0.3(2204) firmware, specifically within the formexeCommand function of its HTTP Handler. This flaw allows a remote attacker with low privileges to achieve full compromise of confidentiality, integrity, and availability without requiring user interaction. Although not yet listed on CISA's KEV catalog, public exploit code is available, indicating a potential for future exploitation.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
1.0.0.3\(2204\)CPE matchmatch criteria | cpe:2.3:o:tenda:w3_firmware:1.0.0.3\(2204\):*:*:*:*:*:*:* |
CVSS version used by this source: 4.0
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
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.
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 records are not available for this CVE.