CVE-2025-4122
Published: 30 April 2025
Summary
CVE-2025-4122 is a medium-severity Injection (CWE-74) vulnerability in Netgear Jwnr2000V2 Firmware. Its CVSS base score is 5.3 (Medium).
Operationally, ranked in the top 18.0% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
Deeper analysis
A command injection vulnerability affects the Netgear JWNR2000v2 router running firmware version 1.0.0.11. The issue resides in the function sub_435E04, where unsanitized input to the host argument enables arbitrary command execution. It is tracked as CVE-2025-4122 with associated CWEs 74 and 77, carries a CVSS 4.0 score of 5.3, and can be triggered remotely.
An authenticated remote attacker with low privileges can supply a crafted host value to the affected function and execute operating-system commands on the device. Successful exploitation yields limited control over confidentiality, integrity, and availability of the router without requiring user interaction.
The vendor was notified prior to disclosure but provided no response or patch. Public references consist of a detailed proof-of-concept on GitHub together with entries on VulDB; the Netgear support site contains no advisory or mitigation guidance for this issue.
EPSS remains low, with a current value of 0.0158 and a peak of 0.0175, indicating no material increase in observed exploitation interest.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2025-12712
Vulnerability details
A vulnerability was found in Netgear JWNR2000v2 1.0.0.11. It has been rated as critical. Affected by this issue is the function sub_435E04. The manipulation of the argument host leads to command injection. The attack may be launched remotely. The vendor…
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was contacted early about this disclosure but did not respond in any way.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Developer assessments and testing (including injection-focused techniques) identify improper neutralization of special elements, and the verifiable flaw remediation corrects them pre-deployment.
Identifies indicators of injection attacks (command, SQL, LDAP, etc.) via anomaly and attack monitoring.