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Medium severity5.3NVD Advisory· Published Mar 22, 2021· Updated Jun 17, 2026

CVE-2021-22321

CVE-2021-22321

Description

There is a use-after-free vulnerability in a Huawei product. A module cannot deal with specific operations in special scenarios. Attackers can exploit this vulnerability by performing malicious operations. This can cause memory use-after-free, compromising normal service. Affected product include some versions of NIP6300, NIP6600, NIP6800, S1700, S2700, S5700, S6700 , S7700, S9700, Secospace USG6300, Secospace USG6500, Secospace USG6600 and USG9500.

AI Insight

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

Affected products

65
  • Huawei/Nip6300 Firmware2 versions
    cpe:2.3:o:huawei:nip6300_firmware:v500r001c30:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:o:huawei:nip6300_firmware:v500r001c30:*:*:*:*:*:*:*
    • cpe:2.3:o:huawei:nip6300_firmware:v500r001c60:*:*:*:*:*:*:*
  • Huawei/Nip6600 Firmware
    cpe:2.3:o:huawei:nip6600_firmware:v500r001c30:*:*:*:*:*:*:*
  • Huawei/Nip6800 Firmware
    cpe:2.3:o:huawei:nip6800_firmware:v500r001c60:*:*:*:*:*:*:*
  • Huawei/S12700 Firmware8 versions
    cpe:2.3:o:huawei:s12700_firmware:v200r007c01:*:*:*:*:*:*:*+ 7 more
    • cpe:2.3:o:huawei:s12700_firmware:v200r007c01:*:*:*:*:*:*:*
    • cpe:2.3:o:huawei:s12700_firmware:v200r007c01b102:*:*:*:*:*:*:*
    • cpe:2.3:o:huawei:s12700_firmware:v200r008c00:*:*:*:*:*:*:*
    • cpe:2.3:o:huawei:s12700_firmware:v200r010c00:*:*:*:*:*:*:*
    • cpe:2.3:o:huawei:s12700_firmware:v200r010c00spc300:*:*:*:*:*:*:*
    • cpe:2.3:o:huawei:s12700_firmware:v200r011c00:*:*:*:*:*:*:*
    • cpe:2.3:o:huawei:s12700_firmware:v200r011c00spc100:*:*:*:*:*:*:*
    • cpe:2.3:o:huawei:s12700_firmware:v200r011c10:*:*:*:*:*:*:*
  • Huawei/S1700 Firmware7 versions
    cpe:2.3:o:huawei:s1700_firmware:v200r009c00spc200:*:*:*:*:*:*:*+ 6 more
    • cpe:2.3:o:huawei:s1700_firmware:v200r009c00spc200:*:*:*:*:*:*:*
    • cpe:2.3:o:huawei:s1700_firmware:v200r009c00spc500:*:*:*:*:*:*:*
    • cpe:2.3:o:huawei:s1700_firmware:v200r010c00:*:*:*:*:*:*:*
    • cpe:2.3:o:huawei:s1700_firmware:v200r010c00spc300:*:*:*:*:*:*:*
    • cpe:2.3:o:huawei:s1700_firmware:v200r011c00:*:*:*:*:*:*:*
    • cpe:2.3:o:huawei:s1700_firmware:v200r011c00spc100:*:*:*:*:*:*:*
    • cpe:2.3:o:huawei:s1700_firmware:v200r011c10:*:*:*:*:*:*:*
  • Huawei/S2700 Firmware6 versions
    cpe:2.3:o:huawei:s2700_firmware:v200r008c00:*:*:*:*:*:*:*+ 5 more
    • cpe:2.3:o:huawei:s2700_firmware:v200r008c00:*:*:*:*:*:*:*
    • cpe:2.3:o:huawei:s2700_firmware:v200r010c00:*:*:*:*:*:*:*
    • cpe:2.3:o:huawei:s2700_firmware:v200r010c00spc300:*:*:*:*:*:*:*
    • cpe:2.3:o:huawei:s2700_firmware:v200r011c00:*:*:*:*:*:*:*
    • cpe:2.3:o:huawei:s2700_firmware:v200r011c00spc100:*:*:*:*:*:*:*
    • cpe:2.3:o:huawei:s2700_firmware:v200r011c10:*:*:*:*:*:*:*
  • Huawei/S5700 Firmware14 versions
    cpe:2.3:o:huawei:s5700_firmware:v200r008c00:*:*:*:*:*:*:*+ 13 more
    • cpe:2.3:o:huawei:s5700_firmware:v200r008c00:*:*:*:*:*:*:*
    • cpe:2.3:o:huawei:s5700_firmware:v200r010c00:*:*:*:*:*:*:*
    • cpe:2.3:o:huawei:s5700_firmware:v200r010c00spc300:*:*:*:*:*:*:*
    • cpe:2.3:o:huawei:s5700_firmware:v200r011c00:*:*:*:*:*:*:*
    • cpe:2.3:o:huawei:s5700_firmware:v200r011c00spc100:*:*:*:*:*:*:*
    • cpe:2.3:o:huawei:s5700_firmware:v200r011c10:*:*:*:*:*:*:*
    • cpe:2.3:o:huawei:s5700_firmware:v200r011c10spc100:*:*:*:*:*:*:*
    • cpe:2.3:o:huawei:s6700_firmware:v200r008c00:*:*:*:*:*:*:*
    • cpe:2.3:o:huawei:s6700_firmware:v200r010c00:*:*:*:*:*:*:*
    • cpe:2.3:o:huawei:s6700_firmware:v200r010c00spc300:*:*:*:*:*:*:*
    • cpe:2.3:o:huawei:s6700_firmware:v200r011c00:*:*:*:*:*:*:*
    • cpe:2.3:o:huawei:s6700_firmware:v200r011c00spc100:*:*:*:*:*:*:*
    • cpe:2.3:o:huawei:s6700_firmware:v200r011c10:*:*:*:*:*:*:*
    • cpe:2.3:o:huawei:s6700_firmware:v200r011c10spc100:*:*:*:*:*:*:*
  • Huawei/S7700 Firmware6 versions
    cpe:2.3:o:huawei:s7700_firmware:v200r008c00:*:*:*:*:*:*:*+ 5 more
    • cpe:2.3:o:huawei:s7700_firmware:v200r008c00:*:*:*:*:*:*:*
    • cpe:2.3:o:huawei:s7700_firmware:v200r010c00:*:*:*:*:*:*:*
    • cpe:2.3:o:huawei:s7700_firmware:v200r010c00spc300:*:*:*:*:*:*:*
    • cpe:2.3:o:huawei:s7700_firmware:v200r011c00:*:*:*:*:*:*:*
    • cpe:2.3:o:huawei:s7700_firmware:v200r011c00spc100:*:*:*:*:*:*:*
    • cpe:2.3:o:huawei:s7700_firmware:v200r011c10:*:*:*:*:*:*:*
  • Huawei/S9700 Firmware8 versions
    cpe:2.3:o:huawei:s9700_firmware:v200r007c01:*:*:*:*:*:*:*+ 7 more
    • cpe:2.3:o:huawei:s9700_firmware:v200r007c01:*:*:*:*:*:*:*
    • cpe:2.3:o:huawei:s9700_firmware:v200r007c01b102:*:*:*:*:*:*:*
    • cpe:2.3:o:huawei:s9700_firmware:v200r008c00:*:*:*:*:*:*:*
    • cpe:2.3:o:huawei:s9700_firmware:v200r010c00:*:*:*:*:*:*:*
    • cpe:2.3:o:huawei:s9700_firmware:v200r010c00spc300:*:*:*:*:*:*:*
    • cpe:2.3:o:huawei:s9700_firmware:v200r011c00:*:*:*:*:*:*:*
    • cpe:2.3:o:huawei:s9700_firmware:v200r011c00spc100:*:*:*:*:*:*:*
    • cpe:2.3:o:huawei:s9700_firmware:v200r011c10:*:*:*:*:*:*:*
  • Huawei/Secospace Usg6300 Firmware2 versions
    cpe:2.3:o:huawei:secospace_usg6300_firmware:v500r001c30:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:o:huawei:secospace_usg6300_firmware:v500r001c30:*:*:*:*:*:*:*
    • cpe:2.3:o:huawei:secospace_usg6300_firmware:v500r001c60:*:*:*:*:*:*:*
  • Huawei/Secospace Usg6500 Firmware2 versions
    cpe:2.3:o:huawei:secospace_usg6500_firmware:v500r001c30:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:o:huawei:secospace_usg6500_firmware:v500r001c30:*:*:*:*:*:*:*
    • cpe:2.3:o:huawei:secospace_usg6500_firmware:v500r001c60:*:*:*:*:*:*:*
  • Huawei/Secospace Usg6600 Firmware2 versions
    cpe:2.3:o:huawei:secospace_usg6600_firmware:v500r001c30:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:o:huawei:secospace_usg6600_firmware:v500r001c30:*:*:*:*:*:*:*
    • cpe:2.3:o:huawei:secospace_usg6600_firmware:v500r001c60:*:*:*:*:*:*:*
  • Huawei/Usg9500 Firmware2 versions
    cpe:2.3:o:huawei:usg9500_firmware:v500r001c30:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:o:huawei:usg9500_firmware:v500r001c30:*:*:*:*:*:*:*
    • cpe:2.3:o:huawei:usg9500_firmware:v500r001c60:*:*:*:*:*:*:*
  • Huawei/NIP6300, NIP6600, NIP6800, S1700, S2700, S5700, S6700 , S7700, S9700, Secospace USG6300, Secospace USG6500, Secospace USG6600 and USG9500description
  • Huawei/NIP6300llm-fuzzy
  • Huawei/NIP6600llm-fuzzy
  • Huawei/Secospace USG6300llm-fuzzy

Patches

Vulnerability mechanics

References

1

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