Vulnerability details
CVE-2026-120231
Wavlink WN553X1-B
WAVLINK WN553X1-B OpenVPN CLI ioos sub_416568 os command injection
CVSS 4.0
9.4Critical
Official description
A vulnerability was determined in WAVLINK WN553X1-B V260403_2.0.0. The affected element is the function sub_416568 of the file /bin/ioos of the component OpenVPN CLI Handler. This manipulation of the argument file_id causes os command injection. It is possible to initiate the attack remotely. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 9.4Critical | 4.0 | CVEProject cvelistV5 (CNA) (VulDB) | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P |
| 9.9Critical | 3.1 | CVEProject cvelistV5 (CNA) (VulDB) | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R |
| 9.9Critical | 3.0 | CVEProject cvelistV5 (CNA) (VulDB) | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R |
| 9.0High | 2.0 | CVEProject cvelistV5 (CNA) (VulDB) | AV:N/AC:L/Au:S/C:C/I:C/A:C/E:POC/RL:ND/RC:UR |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| Wavlink | WN553X1-B | V260403_2.0.0 | CVEProject cvelistV5 (CNA) |
References and advisories
5- https://vuldb.com/vuln/429590 vdb-entrytechnical-description
- https://vuldb.com/vuln/429590/cti signaturepermissions-required
- https://vuldb.com/cve/CVE-2026-120231 third-party-advisory
- https://vuldb.com/submit/919247 third-party-advisory
- https://github.com/senxitoyshuyi-ui/HACKALL/blob/main/WAVLINK%20WN553X1-B%20Router/WAVLINK_WN553X1-B_openvpn_cli_command_injection.md exploit
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Details
- Published
- 2026-11-01
- Last updated
- 2026-11-02
- State
- Published
- Assigner (CNA)
- VulDB
- Kolun priority
- 43 · Medium
Exploit prediction (EPSS)
1.68%
Probability of exploitation in 30 days
77.1%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- No
- Exploitation
- Proof of concept
- Technical impact
- Total
Weaknesses (CWE)
- CWE-78OS Command Injection
- CWE-77Command Injection