CVE-2025-34049Known exploitationPublic exploitNetwork attack vector

Authenticated root command execution via diagnostic input

Published Jun 26, 2025 · Updated Apr 7, 2026

OS command injection in OptiLink ONT1GEW GPON V2.1.11_X101 Build 1127.190306 and earlier allows remote authenticated users to execute commands. The formPing and formTracert administrative handlers pass unsanitized target_addr input to the underlying operating system. Administrative access is required; injected commands run as root and enable full device compromise.

CVSS severity9.4
Critical
EPSS probability2.44%
Next 30 days · Sep 16, 2026
Known exploitationReported
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

OS command injection in OptiLink ONT1GEW GPON V2.1.11_X101 Build 1127.190306 and earlier allows remote authenticated users to execute commands. The formPing and formTracert administrative handlers pass unsanitized target_addr input to the underlying operating system. Administrative access is required; injected commands run as root and enable full device compromise.

The record

CVE
CVE-2025-34049
Published
Jun 26, 2025
Updated
Apr 7, 2026
Vendor
Optilink Networks Pvt. Ltd.
Product
ONT1GEW GPON
Classifications
CWE-78, CAPEC-88, T1059
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Feb 4, 2025Exploitation reportedShadowserver observed exploitation
  2. Jun 26, 2025CVE publishedPublication date reported by the CVE source.
  3. Apr 7, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=V2.1.11_X101 Build 1127.190306

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Optilink Networks Pvt. Ltd. · ONT1GEW GPONversion=0 <=V2.1.11_X101 Build 1127.190306

Published CVSS scores

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

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationReported
Public exploitPublished

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
CAPEC-88OS Command Injection
T1059Command and Scripting Interpreter

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Reported exploitation

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo