RCE in Sercomm H500s
CVE-2021-44080
A Command Injection vulnerability in httpd web server (setup.cgi) in SerComm h500s, FW: lowi-h500s-v3.4.22 allows logged in administrators to arbitrary OS commands as root in the device via the connection_type parameter of the statussupport_diagnostic_tracing.json endpoint.
Vulnerability class: Command Injection (OS Command Injection)
EPSS: 0.237 (97.6th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Sercomm H500s
- Sercomm H500s_firmware — versions lowi-h500s-v3.4.22
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (x_refsource_MISC, Vendor Advisory)
- cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2021-44080?
- CVE-2021-44080 is a high-severity vulnerability in Sercomm H500s, classified under OS Command Injection. CVSS score: 7.2/10. Published 2022-06-02.
- How severe is CVE-2021-44080?
- High severity. CVSS v3 base score is 7.2 out of 10.
- Is CVE-2021-44080 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.