# CVE-2026-84729: ASUS Router firmware out-of-bounds write

Source: https://junglewise.ai/threats/cve-2026-84729-out-of-bounds-write-in-certain-asus-router-firmware-allow-an  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-11-04. Updated: 2026-11-04  
License: CC BY 4.0 with a link back

CVE-2026-84729 · Severity: info · Published 2026-11-04

ASUS Router firmware contains an out-of-bounds write vulnerability that allows an unauthenticated attacker within wireless range to write data beyond memory boundaries or cause the device to stop functioning. An attacker could potentially gain control of the router or disrupt network connectivity for all connected devices.

Technologies: [ASUS Router Firmware](https://junglewise.ai/threats/technologies/router-firmware). Vendors: [ASUS](https://junglewise.ai/threats/vendors/asus).

## Quick answers

**Is CVE-2026-84729 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-84729 being exploited in the wild.

**How severe is CVE-2026-84729?** Informational severity, published 4 November 2026.

**Which products and versions are affected?** ASUS Router Firmware <UNKNOWN>.

**Is there a fix for CVE-2026-84729?** 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.

**How is CVE-2026-84729 attacked?** It is attacked from the adjacent network, in device firmware.

**Am I affected by CVE-2026-84729?** Check whether you run ASUS Router Firmware at an affected version. 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.

## Technical details

An out-of-bounds write flaw exists in ASUS Router firmware that can be triggered by an unauthenticated adjacent attacker sending a crafted packet. The vulnerability allows writing beyond allocated buffer boundaries, potentially enabling code execution or denial of service. No authentication or user interaction is required; network proximity is sufficient for exploitation.

## Affected products

- ASUS Router firmware <UNKNOWN>

## References

- [https://www.asus.com/security-advisory](https://www.asus.com/security-advisory)

## Related threats

- [ASUS Router firmware OS command injection](https://junglewise.ai/threats/cve-2026-88710-improper-neutralization-of-special-elements-used-in-an-os-command)
- [ASUS Router firmware command injection via USB device](https://junglewise.ai/threats/cve-2026-88709-improper-neutralization-of-special-elements-used-in-an-os-command)
- [ASUS Router firmware off-by-one error in packet handling](https://junglewise.ai/threats/cve-2026-88708-an-off-by-one-error-in-certain-asus-router-firmware-allows-an)
- [ASUS Router firmware out-of-bounds write vulnerability](https://junglewise.ai/threats/cve-2026-88707-an-out-of-bounds-write-in-certain-asus-router-firmware-allows-an)
- [ASUS Router stack-based buffer overflow in AiCloud](https://junglewise.ai/threats/cve-2026-84730-stack-based-buffer-overflow-in-certain-asus-router-firmware)