CVE-2020-1789

Name: CVE-2020-1789
Creator: NVD / NIST
Published: 2020-02-18T03:15:10.937+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.8/10EPSS 0.24%

Last modified Jun 17, 2026

CVE-2020-1789 is a medium-severity vulnerability rated 6.8/10 on the CVSS scale. Huawei OSCA-550, OSCA-550A, OSCA-550AX, and OSCA-550X products with version 1.0.1.21(SP3) have an insufficient authentication vulnerability. The software does not require a strong credential when the user trying to do certain operations. EPSS estimates a 0.24% chance of exploitation in the next 30 days.

Description

Huawei OSCA-550, OSCA-550A, OSCA-550AX, and OSCA-550X products with version 1.0.1.21(SP3) have an insufficient authentication vulnerability. The software does not require a strong credential when the user trying to do certain operations. Successful exploit could allow an attacker to pass the authentication and do certain operations by a weak credential.

Metrics

CVSS 3.1

6.8/10

CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

0.24%

15.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-287

Affected Software

Vendor	Product	Versions
Huawei	Osca-550 Firmware	1.0.1.21\(sp3\)
Huawei	Osca-550a Firmware	1.0.1.21\(sp3\)
Huawei	Osca-550ax Firmware	1.0.1.21\(sp3\)
Huawei	Osca-550x Firmware	1.0.1.21\(sp3\)

References

http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20200121-01-osca-enVendor Advisory
http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20200121-01-osca-enVendor Advisory

Timeline

Published: Feb 18, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-1789?

How severe is CVE-2020-1789?

CVE-2020-1789 has a CVSS score of 6.8/10 (MEDIUM severity). The EPSS model estimates a 0.24% probability of exploitation in the next 30 days.

How do I fix CVE-2020-1789?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-1789?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST