Vulnerability details
CVE-2025-34049
OptiLink ONT1GEW GPON
OptiLink ONT1GEW GPON Remote Code Execution
CVSS 4.0
9.4Critical
Official description
An OS command injection vulnerability exists in the OptiLink ONT1GEW GPON router firmware version V2.1.11_X101 Build 1127.190306 and earlier. The router’s web management interface fails to properly sanitize user input in the target_addr parameter of the formTracert and formPing administrative endpoints. An authenticated attacker can inject arbitrary operating system commands, which are executed with root privileges, leading to remote code execution. Successful exploitation enables full compromise of the device. Exploitation evidence was observed by the Shadowserver Foundation on 2025-02-04 UTC.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 9.4Critical | 4.0 | CVEProject cvelistV5 (CNA) (VulnCheck) | CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| OptiLink | ONT1GEW GPON | v ≤ V2.1.11_X101 Build 1127.190306 | CVEProject cvelistV5 (CNA) |
References and advisories
4- https://www.exploit-db.com/exploits/49955 exploit
- https://optilinknetwork.com/ product
- https://vulncheck.com/advisories/optilink-ont1gew-router-rce third-party-advisory
- https://packetstorm.news/files/id/162993 exploit
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Details
- Published
- 2025-06-26
- Last updated
- 2026-04-07
- State
- Published
- Assigner (CNA)
- VulnCheck
Exploit prediction (EPSS)
2.43%
Probability of exploitation in 30 days
84.2%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- No
- Exploitation
- Proof of concept
- Technical impact
- Total
Weaknesses (CWE)
- CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')