CVE-2026-2191 is a stack-based buffer overflow vulnerability affecting Tenda AC9 15.03.06.42_multi firmware, specifically within the formGetDdosDefenceList function when processing the security.ddos.map argument. This flaw carries a CVSS v3.1 score of 7.2 (HIGH), indicating a remotely exploitable vulnerability that, if successfully leveraged, could lead to high impact on confidentiality, integrity, and availability. While a public exploit is available, there is currently no evidence of active exploitation, nor has it been added to CISA's KEV catalog. Community discussion and media coverage for this CVE are minimal.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
15.03.06.42_multiCPE matchmatch criteria | cpe:2.3:o:tenda:ac9_firmware:15.03.06.42_multi:*:*:*:*:*:*:* |
CVSS version used by this source: 4.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/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, 0.1 Bluesky, 0.1 Mastodon, and 0.3 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.