Critical severity · published Oct 20, 2021
CVE-2021-21748
ZTE MF971R product has two stack-based buffer overflow vulnerabilities
9.8
CVSS
1.8%
EPSS
No
On KEV
Description
ZTE MF971R product has two stack-based buffer overflow vulnerabilities. An attacker could exploit the vulnerabilities to execute arbitrary code.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.8% · higher than 78% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MF
Mf971r Firmware · Zte
v1.0.0b05; 1v1.0.0b06; 2v1.0.0b03; s2v1.0.0b03; sv1.0.0b05 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-21748
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-21748
Vendor Advisory
https://support.zte.com.cn/support/news/LoopholeInfoDetail.aspx?newsId=1019764
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