# CVE-2026-15479: H3C NX15 weak password recovery in Administrator Password Modification Endpoint

Source: https://junglewise.ai/threats/cve-2026-15479-h3c-nx15-weak-password-recovery-in-administrator-password  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-07-12. Updated: 2026-07-12  
License: CC BY 4.0 with a link back

CVE-2026-15479 · Severity: high · CVSS 7.3 · Published 2026-07-12

A security flaw in the H3C NX15 router allows unauthorized individuals to reset the administrator password. This router is typically used to provide network connectivity for homes or small offices. An attacker could exploit this to take full control of the device, potentially intercepting network traffic or disrupting internet service.

Technologies: [H3C NX15](https://junglewise.ai/threats/technologies/nx15). Vendors: [H3C](https://junglewise.ai/threats/vendors/h3c).

## Quick answers

**Is CVE-2026-15479 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-15479 being exploited in the wild.

**How severe is CVE-2026-15479?** High severity, with a CVSS score of 7.3, published 12 July 2026.

**Which products and versions are affected?** H3C NX15 V100R017.

**Is there a fix for CVE-2026-15479?** 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-2026-15479 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2026-15479?** Check whether you run H3C NX15 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

A weak password recovery vulnerability (CWE-640) exists in the H3C NX15 V100R017 router. The flaw is located in the 'change_passwd' function within the '/api/login/modify' endpoint. By manipulating the 'newPass' argument, a remote, unauthenticated attacker can bypass intended security controls to reset the administrator password. This leads to complete administrative account takeover. Public exploit code and proof-of-concept materials have been disclosed.

## Affected products

- H3C NX15 V100R017

## Timeline

- 2026-07-12: disclosed: Vulnerability published on NVD and VulDB

## References

- [https://github.com/coconut652-7/IOT_Vul_Public/tree/main/H3C/NX15R017/pre_auth_pwd_change](https://github.com/coconut652-7/IOT_Vul_Public/tree/main/H3C/NX15R017/pre_auth_pwd_change)
- [https://vuldb.com/cve/CVE-2026-15479](https://vuldb.com/cve/CVE-2026-15479)
- [https://vuldb.com/submit/837069](https://vuldb.com/submit/837069)
- [https://vuldb.com/vuln/377785](https://vuldb.com/vuln/377785)
- [https://vuldb.com/vuln/377785/cti](https://vuldb.com/vuln/377785/cti)

## Related threats

- [H3C NX15 command injection in WAN repeater configuration](https://junglewise.ai/threats/cve-2026-18902-h3c-nx15-command-injection-in-wan-repeater-configuration)
- [H3C NX15 dangerous routine exposure in Web API](https://junglewise.ai/threats/cve-2026-18901-h3c-nx15-dangerous-routine-exposure-in-web-api)
- [H3C NX15 OS command injection in Backend RPC](https://junglewise.ai/threats/cve-2026-18900-h3c-nx15-os-command-injection-in-backend-rpc)
- [H3C NX15 command injection in reload.reload_config](https://junglewise.ai/threats/cve-2026-18814-h3c-nx15-command-injection-in-reload-reload-config)
- [H3C NX15 command injection in /api/esps delete](https://junglewise.ai/threats/cve-2026-18813-h3c-nx15-command-injection-in-api-esps-delete)