VulnerabilityModified

CVE-2021-22321

There is a use-after-free vulnerability in a Huawei product.

MEDIUM 5.3EPSS 0.71%

Does this matter?

Lower severity and a low EPSS score (0.71%). Track it; it rarely justifies an emergency change on its own.

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.

CVSS 3.1: 5.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
EPSS: 0.71% probability · 52th percentile
CISA KEV: Not listed
Weakness: CWE-416
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
Source: psirt@huawei.com

References

https://www.huawei.com/en/psirt/security-advisories/huawei-sa-20210210-01-uaf-enVendor Advisory
https://www.huawei.com/en/psirt/security-advisories/huawei-sa-20210210-01-uaf-enVendor Advisory

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.