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CVE-2024-11630: E-Lins H685/H685f/H700/H720/H750/H820/H820Q/H820Q0/H900 OEM Backend hard-coded credentials

• Severity: high (CVSS 7.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-11-22 · updated 2026-06-17
• Weakness: CWE-259

Description

A vulnerability has been found in E-Lins H685, H685f, H700, H720, H750, H820, H820Q, H820Q0 and H900 up to 3.2 and classified as critical. This vulnerability affects unknown code of the component OEM Backend. The manipulation leads to hard-coded credentials. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. It is recommended to change the configuration settings. The vendor was contacted early about this disclosure but did not respond in any way.

Affected products

• E-Lins H685: 3.0, 3.1, 3.2
• E-Lins H685f: 3.0, 3.1, 3.2
• E-Lins H700: 3.0, 3.1, 3.2
• E-Lins H720: 3.0, 3.1, 3.2
• E-Lins H750: 3.0, 3.1, 3.2
• E-Lins H820: 3.0, 3.1, 3.2
• E-Lins H820Q: 3.0, 3.1, 3.2
• E-Lins H820Q0: 3.0, 3.1, 3.2
• E-Lins H900: 3.0, 3.1, 3.2

References

• https://github.com/I3eg1nner/iot-vuln/blob/main/E-lins/Hard-Coded%20Credential%20Vulnerability%20in%20E-Lins%20Routers.md
• https://vuldb.com/?ctiid.285916
• https://vuldb.com/?id.285916
• https://vuldb.com/?submit.444738

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