Use After Free in Huawei Nip6300
CVE-2021-22321
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.
Vulnerability class: Use-After-Free
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.
EPSS exploit prediction
EPSS: 0.007 (54.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 54th percentile — 54.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: +0.000
Affected products
- Huawei Nip6300
- Huawei Nip6300 Firmware — versions v500r001c30, v500r001c60
- Huawei Nip6600
- Huawei Nip6600 Firmware — versions v500r001c30
- Huawei Nip6800
- Huawei Nip6800 Firmware — versions v500r001c60
- Huawei S12700
- Huawei S12700 Firmware — versions v200r007c01, v200r007c01b102, v200r008c00
- Huawei S1700
- Huawei S1700 Firmware — versions v200r009c00spc200, v200r009c00spc500, v200r010c00
Weakness classification (CWE)
References
- www.huawei.com/en/psirt/security-advisories/huawei-sa-20210210-01-uaf-en (Vendor Advisory)
Frequently asked questions
- What is CVE-2021-22321?
- CVE-2021-22321 is a medium-severity vulnerability in Huawei Nip6300, classified under Use After Free. CVSS score: 5.3/10. Published 2021-03-22.
- How severe is CVE-2021-22321?
- Medium severity. CVSS v3 base score is 5.3 out of 10.