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CVE-2026-77946criticalCWE-119CWE-121

TRENDnet TEW-821DAP NTP Timezone Configuration apply_time.cgi uci_safe_get stack-based overflow

48Vexday Risk Score

No sign of exploitation. It has a public proof of concept.

ssvc Attendcvss 10epss 0.6%
exploitation probability
0.6%top 53% of all CVEs
observed exploitation
nono source reports it
1 public exploit(s)
A vulnerability was determined in TRENDnet TEW-821DAP 2.2.01b05. Affected by this vulnerability is the function uci_safe_get of the file /cgi-bin/apply_time.cgi of the component NTP Timezone Configuration Handler. Executing a manipulation of the argument system.ntp.server/system.ntp.enable_server/cameo.time.time_zone/cameo.cameo.syslog_server can lead to stack-based buffer overflow. The attack may be launched remotely. The exploit has been publicly disclosed and may be utilized.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P
Affected products
TRENDnet · TEW-821DAP
⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.