# CVE-2026-75753: ASUS router missing authentication for critical function

Source: https://junglewise.ai/threats/cve-2026-75753-missing-authentication-for-a-critical-function-in-certain-asus  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-20. Updated: 2026-10-20  
License: CC BY 4.0 with a link back

CVE-2026-75753 · Severity: info · Published 2026-10-20

Certain ASUS routers lack authentication on a critical HTTP-accessible function, allowing nearby users to send commands without authorization. An attacker can trigger the device to expose identification information and enter a specific mode, potentially disabling the router's ability to self-recover during abnormal conditions, leading to service disruption.

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

## Quick answers

**Is CVE-2026-75753 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-75753 being exploited in the wild.

**How severe is CVE-2026-75753?** Informational severity, published 20 October 2026.

**Which products and versions are affected?** ASUS router.

**Is there a fix for CVE-2026-75753?** 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-2026-75753 attacked?** It is attacked over the network or from the adjacent network, in a network appliance.

**Am I affected by CVE-2026-75753?** Check whether you run ASUS Router. 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

The vulnerability is an authentication bypass in ASUS router firmware where a critical function exposed over HTTP lacks access controls. An attacker within network proximity can send specially crafted HTTP requests to trigger device identification disclosure and mode switching. The impact is limited to information exposure and self-recovery disabling when abnormal conditions occur; no code execution or unauthorized configuration changes are indicated.

## Affected products

- ASUS router

## Timeline

- 2026-10-20: disclosed

## References

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

## Related threats

- [ASUS router OS command injection and CSRF in administrator interface](https://junglewise.ai/threats/cve-2026-75779-improper-neutralization-of-special-elements-used-in-an-os-command)
- [ASUS router command injection in factory-default state](https://junglewise.ai/threats/cve-2026-75775-improper-neutralization-of-special-elements-used-in-an-os-command)
- [ASUS router sensitive information insertion into log file](https://junglewise.ai/threats/cve-2026-16528-insertion-of-sensitive-information-into-log-file-in-certain-asus)
- [ASUS Router format string in web management interface](https://junglewise.ai/threats/cve-2026-14157-use-of-an-externally-controlled-format-string-in-the-asus-router)