CVE-2026-4497 identifies a critical OS command injection vulnerability in Totolink WA300 firmware version 5.2cu.7112_B20190227, specifically within the recvUpgradeNewFw function of the /cgi-bin/cstecgi.cgi file. This flaw carries a CVSS score of 9.8 CRITICAL, allowing unauthenticated attackers to remotely execute arbitrary commands with low attack complexity, leading to full compromise of the device. An exploit for this vulnerability has been publicly disclosed, making remote exploitation possible, though it is not yet listed on common public exploit frameworks. While not currently in CISA's KEV catalog, its inclusion on the "Hot List: Active" and minor community discussion indicate it is a monitored threat that could be utilized.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
5.2cu.7112_b20190227CPE matchmatch criteria | cpe:2.3:o:totolink:wa300_firmware:5.2cu.7112_b20190227:*:*:*:*:*:*:* |
CVSS version used by this source: 4.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/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, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.