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TI-2025-03659 Aliases CVE-2025-4120GHSA-q66q-qwxm-vgrg

Netgear JWNR2000v2 sub_4238E8 buffer overflow

Priority MEDIUM 40CWE-119Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-119 and the CVSS impact.

Summary

A vulnerability was found in Netgear JWNR2000v2 1.0.0.11. It has been classified as critical. Affected is the function sub_4238E8. The manipulation of the argument host leads to buffer overflow. It is possible to launch the attack remotely. The vendor was contacted early about this disclosure but did not respond in any way.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.01033 64th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
NETGEARJWNR2000v21.0.0.11—No fix listedCNA
  • JWNR2000v2 VendorNETGEAR Affected 1.0.0.11 Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:o:netgear:jwnr2000v2_firmware:1.0.0.11:*:*:*:*:*:*:*1.0.0.11VulnerableNETGEAR
cpe:2.3:h:netgear:jwnr2000v2:-:*:*:*:*:*:*:*not specified by NVDRunning onNETGEAR
  • cpe:2.3:o:netgear:jwnr2000v2_firmware:1.0.0.11:*:*:*:*:*:*:* Versions 1.0.0.11 Vulnerable ·NETGEAR
  • cpe:2.3:h:netgear:jwnr2000v2:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NETGEAR

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-4120
  2. 2026-10-03 Alias added: GHSA-q66q-qwxm-vgrg

References

Other 2

  • TI-2023-20682 Netgear JWNR2000v2 v1.0.0.11, XWN5001 v0.4.1.1, and XAVN2001v2 v0.4.0.7 were discovered… CVSS 3.1HIGH 8.8
  • TI-2023-20184 Netgear JWNR2000v2 v1.0.0.11, XWN5001 v0.4.1.1, and XAVN2001v2 v0.4.0.7 were discovered… CVSS 3.1HIGH 8.8
  • TI-2025-03660 Netgear JWNR2000v2 cmd_wireless command injection CVSS 4.0MEDIUM 5.3
  • TI-2025-03661 Netgear JWNR2000v2 sub_435E04 command injection CVSS 4.0MEDIUM 5.3

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences