CVE-2022-36553

CVE Enrichment

CVSS: 9.8 CRITICAL
EPSS: 90.90%
EPSS Percentile: 99.81%
CISA KEV: Not listed

Description

Hytec Inter HWL-2511-SS v1.05 and below was discovered to contain a command injection vulnerability via the component /www/cgi-bin/popen.cgi.

Technical Details

CVSS Version: 3.1
CNA / NVD Source: cve@mitre.org
Published: 30-Aug-2022 06:15
Last Modified: 17-Jun-2026 11:53
EPSS Date: 2026-10-13
CWE: CWE-77

CVSS Vector


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

Affected Products / Versions

hytec / hwl-2511-ss_firmware
Version / affected range: * · through (inclusive) 1.05
cpe:2.3:o:hytec:hwl-2511-ss_firmware:*:*:*:*:*:*:*:*

References

Last enrichment sync: 14-Oct-2026 09:33
Sources: NVD · FIRST EPSS · CISA KEV
Latest successful provider update; providers refresh independently.

Reported Context (1)

We first discovered that the threat actor delivered ClingSTUN by exploiting CVE-2022-36553 from 124[.]163[.]212[.]119, a command injection vulnerability affecting Hytec Inter HWL-2511-SS routers. ClingSTUN Linux Backdoor Abuses Public STUN Services to Control Compromised IoT Devices

CVE (30)

Malware (4)

People (1)

MITRE ATT&CK (10)

Vendors (19)

Products (14)

Tools (8)

Note: Related entities, including threat actors, malware, CVEs, MITRE ATT&CK techniques, vendors, products, tools, countries, and industries, are shown when they appear in the same reporting. Their presence does not necessarily mean they were targeted, compromised, vulnerable, responsible for the activity, or directly involved in the incident.