What’s Vulnerable › Vulnerabilities

CVE-2021-22309

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.8% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-03-22 · updated 2026-06-17
• Weakness: CWE-330

Description

There is insecure algorithm vulnerability in Huawei products. A module uses less random input in a secure mechanism. Attackers can exploit this vulnerability by brute forcing to obtain sensitive message. This can lead to information leak. Affected product versions include:USG9500 versions V500R001C30SPC200, V500R001C60SPC500,V500R005C00SPC200;USG9520 versions V500R005C00;USG9560 versions V500R005C00;USG9580 versions V500R005C00.

Affected products

• Huawei USG9500: v500r001c30spc200, v500r001c60spc500, v500r005c00spc200
• Huawei Usg9520 Firmware: v500r005c00
• Huawei Usg9560 Firmware: v500r005c00
• Huawei Usg9580 Firmware: v500r005c00

References

• https://www.huawei.com/en/psirt/security-advisories/huawei-sa-20210202-01-fw-en
• https://www.huawei.com/en/psirt/security-advisories/huawei-sa-20210202-01-fw-en

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