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…
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 24.9%, higher than 98% of all known CVEs. Patch or mitigate before the next change window.
Description
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.
- CVSS 3.1
- 7.2 HIGHCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 24.92% probability · 98th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-78
- Affected
- sercomm/h500s firmware
- Source
- cve@mitre.org
EPSS 24.9% since 3 November 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://research.nccgroup.com/2022/05/24/technical-advisory-sercomm-h500s-authenticated-remote-command-execution-cve-2021-44080/Exploit, Third Party Advisory
- https://www.sercomm.comVendor Advisory
- https://research.nccgroup.com/2022/05/24/technical-advisory-sercomm-h500s-authenticated-remote-command-execution-cve-2021-44080/Exploit, Third Party Advisory
- https://www.sercomm.comVendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.