HOMEVULNERABILITIESCVE-2021-44080
HIGH

CVE-2021-44080

CWE-78Published: June 2, 2022· Updated: Jun 17, 2026

7.2
CVSS v3.1

Official 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.

NVD Source

Technical Analysis

CVE-2021-44080 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires high privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 7.2.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.High
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

sercomm2 product(s)
h500s firmwareh500s
Source: NVD CPE · 2 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttps://research.nccgroup.com/2022/05/24/technical-advisory-sercomm-h500s-authenticated-remote-command-execution-cve-2021-44080/
ADVISORYhttps://www.sercomm.com
ADVISORYhttps://research.nccgroup.com/2022/05/24/technical-advisory-sercomm-h500s-authenticated-remote-command-execution-cve-2021-44080/
ADVISORYhttps://www.sercomm.com

All References (4)

→
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

Quick Facts

CVE IDCVE-2021-44080
CVSS Score7.2 / 10
SeverityHIGH
WeaknessCWE-78
CISA KEVNo
Affected1 vendor(s)
PublishedJun 2, 2022

Related CVEs (CWE-78)

CVE-2010-2445
10.0
CVE-2010-3754
10.0
CVE-2008-6554
10.0
CVE-2010-0418
10.0
CVE-2009-4025
10.0
CVE-2010-3757
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2021-44080 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWatch. CVE data is provided under the NVD usage policy.
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