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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.

PUBLISHED Reserved 2025-04-15 | Published 2025-06-26 | Updated 2026-04-07 | Assigner VulnCheck




CRITICAL: 9.4CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

Problem types

CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Product status

Default status
unaffected

Any version
affected

Credits

SecNigma finder

Amal finder

References

www.exploit-db.com/exploits/49955 exploit

optilinknetwork.com/ product

vulncheck.com/advisories/optilink-ont1gew-router-rce third-party-advisory

packetstorm.news/files/id/162993 exploit

cve.org (CVE-2025-34049)

nvd.nist.gov (CVE-2025-34049)

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