CVE-2026-75784
Remote stack-based buffer overflow in TRENDnet TEW-WLC100 nginx HTTP Server header handler.
Is CVE-2026-75784 being exploited?
Not confirmed. CVE-2026-75784 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 1.0% probability of exploitation in the next 30 days.
How severe is CVE-2026-75784?
CVE-2026-75784 is rated Critical with a CVSS score of 9.3. 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-2026-75784?
Not known from our data. No patch reference has been recorded for CVE-2026-75784, 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-2026-75784 affect?
CVE-2026-75784 affects TRENDnet TEW-WLC100 (firmware 1v2.07b01), Other TRENDnet devices using the vulnerable nginx HTTP header handler. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-75784?
Isolate device, block external HTTP management, apply vendor patch when available.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Remote attacker can trigger stack buffer overflow via crafted HTTP 'Server' header, enabling crash or remote code execution and full device compromise.
Immediate action required
- affected1v2.07b01
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.