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CVE-2021-30230

32
FAUCET Score

CVE-2021-30230 is a critical command injection vulnerability affecting China Mobile An Lianbao WF-1 router firmware version 1.0.1. An unauthenticated remote attacker can execute arbitrary commands by injecting shell metacharacters into the 'zonename' parameter of the api/ZRFirmware/set_time_zone interface. With a CVSS score of 9.8, this vulnerability poses a severe risk, allowing for complete compromise of confidentiality, integrity, and availability. While not listed in CISA's KEV catalog, there is significant community discussion and public exploit code available on GitHub, indicating a high potential for exploitation.

Impacted Technologies

VendorProductVersion(s)CPE
1.0.1CPE matchmatch criteria
cpe:2.3:o:chinamobile:an_lianbao_wf-1_firmware:1.0.1:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
3.27%
Probability of exploitation in next 30 days
EPSS Percentile
87.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0327 is in the 79th percentile among its peer group of 36,897 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

iot.10086.cn
Product
github.com / pokerfacett/MY_REQUEST/blob/master/China%20Mobile%20An%20Lianbao%20WF-1%20router%20Command%20Injection5.md
ExploitThird Party Advisory
cnvd.org.cn / flaw/show/CNVD-2021-03520
Third Party Advisory