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CVE-2026-7721

Totolink WA300 cstecgi.cgi NTPSyncWithHost command injection

CVSS 5.3 MEDIUMEPSS 0.9%CWE-74CWE-77
Vexday Risk Score
33Attention
SSVC decision (CISA)
Attend
PoC available → attend closely
CVSS 5.3EPSS 0.9%KEV nãoPoC públicaNuclei —Metasploit —Patch —
Lifecycle
04 May 2026Published on NVD
Recommendation: Plan a near-term fix — a public PoC already exists.
A security vulnerability has been detected in Totolink WA300 5.2cu.7112_B20190227. This affects the function NTPSyncWithHost of the file /cgi-bin/cstecgi.cgi. Such manipulation of the argument hostTime leads to command injection. The attack can be executed remotely. The exploit has been disclosed publicly and may be used.
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
Affected products
Totolink · WA300
public PoCs found — 1
cve_referencelavender-bicycle-a5a.notion.site/TOTOLINK-WA300-NTPSyncWithHost-34553a41781f80808f3cfd14e1c603e7unverified
⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.

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References
https://lavender-bicycle-a5a.notion.site/TOTOLINK-WA300-NTPSyncWithHost-34553a41781f80808f3cfd14e1c603e7https://vuldb.com/submit/807199https://vuldb.com/vuln/360897https://vuldb.com/vuln/360897/ctihttps://www.totolink.net/