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Medium severity · published Oct 27, 2021
CVE-2021-37122
There is a use-after-free (UAF) vulnerability in Huawei products
6.5
CVSS
0.3%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Adjacent
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 19% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
C1
Cloudengine 12800 Firmware · Huawei
v200r005c10spc800; v200r019c00spc800 · source: NVD
C5
Cloudengine 5800 Firmware · Huawei
v200r005c10spc800; v200r019c00spc800 · source: NVD
C6
Cloudengine 6800 Firmware · Huawei
v200r005c10spc800; v200r005c20spc800; v200r019c00spc800 · source: NVD
C7
Cloudengine 7800 Firmware · Huawei
v200r005c10spc800; v200r019c00spc800 · source: NVD
Affected product
C1
Cloudengine 12800 Firmware
Huawei
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-37122
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-37122
Vendor Advisory
https://www.huawei.com/en/psirt/security-advisories/huawei-sa-20211008-01-cloudengine-en
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