Vulnerability · Published Aug 5, 2021 · Assigned by zte
CVE-2021-21739
Medium 4.6
In plain English
A medium-severity security flaw in <ZXCTN 6120H>. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 16% of all known vulnerabilities).
Severity (CVSS NVD)4.6Medium
Exploit odds (30 days)0.2%top 83.8% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
A ZTE's product of the transport network access layer has a security vulnerability. Because the system does not sufficiently verify the data reliability, attackers could replace an authenticated optical module on the equipment with an unauthenticated one, bypassing system authentication and detection, thus affecting signal transmission. This affects: <ZXCTN 6120H><V5.10.00B24>
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| n/a | <ZXCTN 6120H> | <V5.10.00B24> |