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Medium severity6.5NVD Advisory· Published Oct 27, 2021· Updated Jun 17, 2026

CVE-2021-37122

CVE-2021-37122

Description

There is a use-after-free (UAF) vulnerability in Huawei products. An attacker may craft specific packets to exploit this vulnerability. Successful exploitation may cause the service abnormal. Affected product versions include:CloudEngine 12800 V200R005C10SPC800,V200R019C00SPC800;CloudEngine 5800 V200R005C10SPC800,V200R019C00SPC800;CloudEngine 6800 V200R005C10SPC800,V200R005C20SPC800,V200R019C00SPC800;CloudEngine 7800 V200R005C10SPC800,V200R019C00SPC800.

AI Insight

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

Affected products

11
  • Huawei/Cloudengine 12800 Firmware2 versions
    cpe:2.3:o:huawei:cloudengine_12800_firmware:v200r005c10spc800:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:o:huawei:cloudengine_12800_firmware:v200r005c10spc800:*:*:*:*:*:*:*
    • cpe:2.3:o:huawei:cloudengine_12800_firmware:v200r019c00spc800:*:*:*:*:*:*:*
  • Huawei/Cloudengine 5800 Firmware2 versions
    cpe:2.3:o:huawei:cloudengine_5800_firmware:v200r005c10spc800:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:o:huawei:cloudengine_5800_firmware:v200r005c10spc800:*:*:*:*:*:*:*
    • cpe:2.3:o:huawei:cloudengine_5800_firmware:v200r019c00spc800:*:*:*:*:*:*:*
  • Huawei/Cloudengine 6800 Firmware4 versions
    cpe:2.3:o:huawei:cloudengine_6800_firmware:v200r005c10spc800:*:*:*:*:*:*:*+ 3 more
    • cpe:2.3:o:huawei:cloudengine_6800_firmware:v200r005c10spc800:*:*:*:*:*:*:*
    • cpe:2.3:o:huawei:cloudengine_6800_firmware:v200r005c20spc800:*:*:*:*:*:*:*
    • cpe:2.3:o:huawei:cloudengine_6800_firmware:v200r019c00spc800:*:*:*:*:*:*:*
    • (no CPE)range: V200R005C10SPC800, V200R019C00SPC800, V200R005C20SPC800
  • Huawei/Cloudengine 7800 Firmware2 versions
    cpe:2.3:o:huawei:cloudengine_7800_firmware:v200r005c10spc800:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:o:huawei:cloudengine_7800_firmware:v200r005c10spc800:*:*:*:*:*:*:*
    • cpe:2.3:o:huawei:cloudengine_7800_firmware:v200r019c00spc800:*:*:*:*:*:*:*
  • Huawei/Huawei productsdescription

Patches

Vulnerability mechanics

References

1

News mentions

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