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Medium severity5.9NVD Advisory· Published Nov 23, 2021· Updated Jun 17, 2026

CVE-2021-22356

CVE-2021-22356

Description

There is a weak secure algorithm vulnerability in Huawei products. A weak secure algorithm is used in a module. Attackers can exploit this vulnerability by capturing and analyzing the messages between devices to obtain information. This can lead to information leak.Affected product versions include: IPS Module V500R005C00SPC100, V500R005C00SPC200; NGFW Module V500R005C00SPC100, V500R005C00SPC200; Secospace USG6300 V500R001C30SPC200, V500R001C30SPC600, V500R001C60SPC500, V500R005C00SPC100, V500R005C00SPC200; Secospace USG6500 V500R001C30SPC200, V500R001C30SPC600, V500R001C60SPC500, V500R005C00SPC100, V500R005C00SPC200; Secospace USG6600 V500R001C30SPC200, V500R001C30SPC600, V500R001C60SPC500, V500R005C00SPC100, V500R005C00SPC200; USG9500 V500R001C30SPC200, V500R001C30SPC600, V500R001C60SPC500, V500R005C00SPC100, V500R005C00SPC200.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

31
  • Huawei/Ips Module Firmware2 versions
    cpe:2.3:o:huawei:ips_module_firmware:v500r005c00spc100:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:o:huawei:ips_module_firmware:v500r005c00spc100:*:*:*:*:*:*:*
    • cpe:2.3:o:huawei:ips_module_firmware:v500r005c00spc200:*:*:*:*:*:*:*
  • Huawei/Ngfw Module Firmware2 versions
    cpe:2.3:o:huawei:ngfw_module_firmware:v500r005c00spc100:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:o:huawei:ngfw_module_firmware:v500r005c00spc100:*:*:*:*:*:*:*
    • cpe:2.3:o:huawei:ngfw_module_firmware:v500r005c00spc200:*:*:*:*:*:*:*
  • Huawei/Secospace Usg6300 Firmware5 versions
    cpe:2.3:o:huawei:secospace_usg6300_firmware:v500r001c30spc200:*:*:*:*:*:*:*+ 4 more
    • cpe:2.3:o:huawei:secospace_usg6300_firmware:v500r001c30spc200:*:*:*:*:*:*:*
    • cpe:2.3:o:huawei:secospace_usg6300_firmware:v500r001c30spc600:*:*:*:*:*:*:*
    • cpe:2.3:o:huawei:secospace_usg6300_firmware:v500r001c60spc500:*:*:*:*:*:*:*
    • cpe:2.3:o:huawei:secospace_usg6300_firmware:v500r005c00spc100:*:*:*:*:*:*:*
    • cpe:2.3:o:huawei:secospace_usg6300_firmware:v500r005c00spc200:*:*:*:*:*:*:*
  • Huawei/Secospace Usg6500 Firmware5 versions
    cpe:2.3:o:huawei:secospace_usg6500_firmware:v500r001c30spc200:*:*:*:*:*:*:*+ 4 more
    • cpe:2.3:o:huawei:secospace_usg6500_firmware:v500r001c30spc200:*:*:*:*:*:*:*
    • cpe:2.3:o:huawei:secospace_usg6500_firmware:v500r001c30spc600:*:*:*:*:*:*:*
    • cpe:2.3:o:huawei:secospace_usg6500_firmware:v500r001c60spc500:*:*:*:*:*:*:*
    • cpe:2.3:o:huawei:secospace_usg6500_firmware:v500r005c00spc100:*:*:*:*:*:*:*
    • cpe:2.3:o:huawei:secospace_usg6500_firmware:v500r005c00spc200:*:*:*:*:*:*:*
  • Huawei/Secospace Usg6600 Firmware5 versions
    cpe:2.3:o:huawei:secospace_usg6600_firmware:v500r001c30spc200:*:*:*:*:*:*:*+ 4 more
    • cpe:2.3:o:huawei:secospace_usg6600_firmware:v500r001c30spc200:*:*:*:*:*:*:*
    • cpe:2.3:o:huawei:secospace_usg6600_firmware:v500r001c30spc600:*:*:*:*:*:*:*
    • cpe:2.3:o:huawei:secospace_usg6600_firmware:v500r001c60spc500:*:*:*:*:*:*:*
    • cpe:2.3:o:huawei:secospace_usg6600_firmware:v500r005c00spc100:*:*:*:*:*:*:*
    • cpe:2.3:o:huawei:secospace_usg6600_firmware:v500r005c00spc200:*:*:*:*:*:*:*
  • Huawei/Usg9500 Firmware5 versions
    cpe:2.3:o:huawei:usg9500_firmware:v500r001c30spc200:*:*:*:*:*:*:*+ 4 more
    • cpe:2.3:o:huawei:usg9500_firmware:v500r001c30spc200:*:*:*:*:*:*:*
    • cpe:2.3:o:huawei:usg9500_firmware:v500r001c30spc600:*:*:*:*:*:*:*
    • cpe:2.3:o:huawei:usg9500_firmware:v500r001c60spc500:*:*:*:*:*:*:*
    • cpe:2.3:o:huawei:usg9500_firmware:v500r005c00spc100:*:*:*:*:*:*:*
    • cpe:2.3:o:huawei:usg9500_firmware:v500r005c00spc200:*:*:*:*:*:*:*
  • Huawei/IPS Moduledescription
  • Huawei/Ips Modulellm-fuzzy
    Range: V500R005C00SPC100, V500R005C00SPC200
  • Huawei/Secospace USG6300llm-fuzzy
    Range: V500R001C30SPC200, V500R001C30SPC600, V500R001C60SPC500, V500R005C00SPC100, V500R005C00SPC200
  • Huawei/Secospace USG6500llm-fuzzy
    Range: V500R001C30SPC200, V500R001C30SPC600, V500R001C60SPC500, V500R005C00SPC100, V500R005C00SPC200
  • Huawei/Secospace Usg6600llm-fuzzy
    Range: V500R001C30SPC200, V500R001C30SPC600, V500R001C60SPC500, V500R005C00SPC100, V500R005C00SPC200
  • Huawei/USG9500llm-fuzzy
    Range: V500R001C30SPC200, V500R001C30SPC600, V500R001C60SPC500, V500R005C00SPC100, V500R005C00SPC200
  • Huawei/Ngfw Modulellm-fuzzy
    Range: V500R005C00SPC100, V500R005C00SPC200

Patches

Vulnerability mechanics

References

1

News mentions

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