vulntracker.iovulntracker.io
© 2026 vulntracker.io

CVE-2021-21740

LOW
2.4
CVSS Score
Published: August 9, 2021 at 03:30 PM UTC
Updated: June 17, 2026 at 03:36 AM UTC
2 products affected across 1 vendorZxhn H2640 FirmwareZxhn H2640

Using ZXHN H2640 by N/A?

Get instant alerts when new vulnerabilities affect ZXHN H2640 - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Start FreeSign In
Severity
LOW2.4
Exploit prediction
EPSS 0.4%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Zxhn H2640 Firmware· ZTE
95%
10.0.0C6_TY10.0.0c6_ty
zte-zxhn-h2640 (same device)
Zxhn H2640· ZTEdevice
80%
All versions

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

x_refsource_MISCVendor Advisory
Source: [email protected]
https://support.zte.com.cn/support/news/LoopholeInfoDetail.aspx?newsId=1017244

CVSS

2.4LOW[email protected]
Attack Vector
PHYSICAL
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-59

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Create accountSign in
Free plan, no card