01 Record
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
UnratedPUBLISHEDCNA: zte
CNA base scoreUnratedNo CNA CVSS vector
02 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
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 1.20% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 67.8% of scored records. A rank, not a probability.
- NVD base score
- 7.5 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2021-01-21 19:05Z5 YR AGO
- Last updated
- 2024-08-03 18:23Z2 YR AGO
- Reserved
- 2021-01-04
- Assigning CNA
- zte
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- CWE-401Missing Release of Memory after Effective LifetimeVariant
- Data version
- 5.1
- Document digest
- 34ae2fd19abba56f37ddc5e968ea7273d1d2c972c660e039fe985577938763a9
05 Affected products
VendorProductVersionsPlatforms
n/a<ZXR10 9904, ZXR10 9908, ZXR10 9916, ZXR10 9904-S, ZXR10 9908-S><all versions up to V1.01.10.B12>—