CVE-2021-21740
There is an information leak vulnerability in the digital media player (DMS) of ZTE's residential gateway product.
Does this matter?
Lower severity and a low EPSS score (0.44%). Track it; it rarely justifies an emergency change on its own.
Description
There is an information leak vulnerability in the digital media player (DMS) of ZTE's residential gateway product. The attacker could insert the USB disk with the symbolic link into the residential gateway, and access unauthorized directory information through the symbolic link, causing information leak.
- CVSS 3.1
- 2.4 LOWCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
- EPSS
- 0.44% probability · 38th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-59
- Affected
- zte/zxhn h2640 firmware
- Source
- psirt@zte.com.cn
EPSS 0.4% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.