# CVE-2026-7607: A security vulnerability has been detected in TRENDnet TEW-821DAP 1.12B01. Impacted is the function…

Source: https://junglewise.ai/threats/cve-2026-7607-a-security-vulnerability-has-been-detected-in-trendnet-tew-821dap  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-05-02  
License: CC BY 4.0 with a link back

CVE-2026-7607 · Severity: high · CVSS 8.8 · Published 2026-05-02

A security vulnerability has been detected in TRENDnet TEW-821DAP 1.12B01. Impacted is the function auto_update_firmware of the component Firmware Udpate. The manipulation of the argument str leads to buffer overflow. The attack may be initiated remotely. The vendor explains: "That firmware version will only work on our hardware version v1.xR. We have already EOL that product 8 years ago and are no longer selling". This vulnerability only affects products that are no longer supported by the maintainer.

Technologies: [TRENDnet TEW-821DAP](https://junglewise.ai/threats/technologies/tew-821dap), [TRENDnet Tew-821dap Firmware](https://junglewise.ai/threats/technologies/tew-821dap-firmware). Vendors: [TRENDnet](https://junglewise.ai/threats/vendors/trendnet).

## Quick answers

**Is CVE-2026-7607 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-7607 being exploited in the wild.

**How severe is CVE-2026-7607?** High severity, with a CVSS score of 8.8, published 2 May 2026.

**Which products and versions are affected?** TRENDnet TEW-821DAP, TRENDnet Tew-821dap Firmware. The advisory does not name versions.

**Is there a fix for CVE-2026-7607?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**Am I affected by CVE-2026-7607?** Check whether you run TRENDnet TEW-821DAP or TRENDnet Tew-821dap Firmware. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Affected products

- TRENDnet TEW-821DAP
- TRENDnet Tew-821dap Firmware

## Related threats

- [TRENDnet TEW-821DAP stack-based buffer overflow in NTP timezone configuration](https://junglewise.ai/threats/cve-2026-77946-trendnet-tew-821dap-stack-based-buffer-overflow-in-ntp-timezone)
- [TRENDnet TEW-821DAP command injection in upload.cgi](https://junglewise.ai/threats/cve-2026-77945-trendnet-tew-821dap-command-injection-in-upload-cgi)
- [TRENDnet TEW-821DAP OS command injection in system_ntp](https://junglewise.ai/threats/cve-2026-15487-trendnet-tew-821dap-os-command-injection-in-system-ntp)
- [TRENDnet TEW-821DAP OS command injection in tools_ddns](https://junglewise.ai/threats/cve-2026-15486-trendnet-tew-821dap-os-command-injection-in-tools-ddns)
- [TRENDnet TEW-821DAP command injection in DNS Lookup Handler](https://junglewise.ai/threats/cve-2026-15485-trendnet-tew-821dap-command-injection-in-dns-lookup-handler)