CVSS 3.1
5.3 mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:LCVE-2021-22321
Medium (5.3) in huawei. EPSS 0.7% chance of exploitation in the next 30 days.
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.
Severity
- EPSS
- 0.7% chance of exploitation in the next 30 days; higher than 54% of CVEs (scores of 2026-10-31)
- CWE
- CWE-416
- Published
- Modified
- Record from
- the NVD, synced
Affected
- huawei:nip6300_firmware
- huawei:nip6600_firmware
- huawei:nip6800_firmware
- huawei:s12700_firmware
- huawei:s1700_firmware
- huawei:s2700_firmware
- huawei:s5700_firmware
- huawei:s6700_firmware
- huawei:s7700_firmware
- huawei:s9700_firmware
- huawei:secospace_usg6300_firmware
- huawei:secospace_usg6500_firmware
- huawei:secospace_usg6600_firmware
- huawei:usg9500_firmware