CVE-2026-2886 is a high-severity stack-based buffer overflow vulnerability affecting Tenda A21 1.0.0.0 firmware. Specifically, the set_device_name function in /goform/SetOnlineDevName is susceptible to manipulation of the devName argument, leading to the overflow. This vulnerability carries a CVSS score of 8.8, indicating a high risk due to its network-based attack vector, low attack complexity, and high impact on confidentiality, integrity, and availability. While no active exploitation has been confirmed, a public exploit is available, and despite its high severity, there is minimal community discussion or media coverage surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
1.0.0.0CPE matchmatch criteria | cpe:2.3:o:tenda:a21_firmware:1.0.0.0:*:*:*:*:*:*:* |
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.