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HIGH · 7.5

CVE-2021-21723

Some ZTE products have a DoS vulnerability. Due to the improper handling of memory release in some specific scenarios, a remote attacker can trigger the vulnerability by performing a series of operati...

Vulnerability Description

Some ZTE products have a DoS vulnerability. Due to the improper handling of memory release in some specific scenarios, a remote attacker can trigger the vulnerability by performing a series of operations, resulting in memory leak, which may eventually lead to device denial of service. This affects: ZXR10 9904, ZXR10 9908, ZXR10 9916, ZXR10 9904-S, ZXR10 9908-S; all versions up to V1.01.10.B12.

CVSS Score

7.5

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH

Affected Products

VendorProductVersions
ZteZxr10 9904 Firmware<= v1.01.10.b12
ZteZxr10 9904-
ZteZxr10 9908 Firmware<= v1.01.10.b12
ZteZxr10 9908-
ZteZxr10 9916 Firmware<= v1.01.10.b12
ZteZxr10 9916-
ZteZxr10 9904-S Firmware<= v1.01.10.b12
ZteZxr10 9904-S-
ZteZxr10 9908-S Firmware<= v1.01.10.b12
ZteZxr10 9908-S-

Related Weaknesses (CWE)

CWE-401

References

FAQ

What is CVE-2021-21723?

CVE-2021-21723 is a vulnerability with a CVSS score of 7.5 (HIGH). Some ZTE products have a DoS vulnerability. Due to the improper handling of memory release in some specific scenarios, a remote attacker can trigger the vulnerability by performing a series of operati...

How severe is CVE-2021-21723?

CVE-2021-21723 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-21723?

Check the references section above for vendor advisories and patch information. Affected products include: Zte Zxr10 9904 Firmware, Zte Zxr10 9904, Zte Zxr10 9908 Firmware, Zte Zxr10 9908, Zte Zxr10 9916 Firmware.