CVE-2026-15484
Remote buffer overflow in TRENDnet TEW-821DAP tools_nslookup enabling RCE or DoS
Is CVE-2026-15484 being exploited?
Not confirmed. CVE-2026-15484 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.79% probability of exploitation in the next 30 days.
How severe is CVE-2026-15484?
CVE-2026-15484 is rated High. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-15484?
Not known from our data. No patch reference has been recorded for CVE-2026-15484, which is not the same as no patch existing — a fix may have shipped without a tagged reference, or after this record was written. The vendor advisory is the only authority on whether a fix exists, and mitigations may be available regardless.
What does CVE-2026-15484 affect?
CVE-2026-15484 affects TRENDnet TEW-821DAP (firmware 1.12B01), TEW-821DAP v1.0R (EOL, unconfirmed). Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-15484?
Isolate/replace affected devices; restrict management access; apply firmware if released; monitor logs.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Remote code execution or denial-of-service via buffer overflow in /goform/tools_nslookup; attacker can run commands or crash device remotely.
Immediate action required
- affected1.12B01
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.