What’s Vulnerable › Vulnerabilities

CVE-2021-22357

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-08-23 · updated 2026-06-17
• Weakness: CWE-20

Description

There is a denial of service vulnerability in Huawei products. A module cannot deal with specific messages due to validating inputs insufficiently. Attackers can exploit this vulnerability by sending specific messages to affected module. This can cause denial of service. Affected product versions include: S12700 V200R013C00SPC500, V200R019C00SPC500; S5700 V200R013C00SPC500, V200R019C00SPC500; S6700 V200R013C00SPC500, V200R019C00SPC500; S7700 V200R013C00SPC500, V200R019C00SPC500.

Affected products

• Huawei S12700 Firmware: v200r013c00spc500, v200r019c00spc500
• Huawei S5700 Firmware: v200r013c00spc500, v200r019c00spc500
• Huawei S6700 Firmware: v200r013c00spc500, v200r019c00spc500
• Huawei S7700 Firmware: v200r013c00spc500, v200r019c00spc500

References

• https://www.huawei.com/en/psirt/security-advisories/huawei-sa-20210512-01-dos-en
• https://www.huawei.com/en/psirt/security-advisories/huawei-sa-20210512-01-dos-en

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