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TI-2025-03676 Aliases CVE-2025-4139GHSA-w56q-jx3j-44rq

Netgear EX6120 fwAcosCgiInbound buffer overflow

Priority MEDIUM 42CWE-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 classified as critical was found in Netgear EX6120 1.0.0.68. Affected by this vulnerability is the function fwAcosCgiInbound. The manipulation of the argument host leads to buffer overflow. The attack can be launched 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 0.01167 67th 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
Total

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

Affected products

VendorProductAffected versionsFixed inStatusSource
NETGEAREX61201.0.0.68—No fix listedCNA
  • EX6120 VendorNETGEAR Affected 1.0.0.68 Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:o:netgear:ex6120_firmware:1.0.0.68:*:*:*:*:*:*:*1.0.0.68VulnerableNETGEAR
cpe:2.3:h:netgear:ex6120:-:*:*:*:*:*:*:*not specified by NVDRunning onNETGEAR
  • cpe:2.3:o:netgear:ex6120_firmware:1.0.0.68:*:*:*:*:*:*:* Versions 1.0.0.68 Vulnerable ·NETGEAR
  • cpe:2.3:h:netgear:ex6120:-:*:*:*:*:*:*:* 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-2025-4139
  2. 2026-10-03 Alias added: GHSA-w56q-jx3j-44rq

References

Other 2

  • TI-2022-10624 Buffer overflow in NETGEAR R6700v3 CVSS 3.1HIGH 8.8
  • TI-2021-13978 Stack-based buffer overflow in NETGEAR R6400v2 CVSS 3.1HIGH 8.8
  • TI-2021-20708 Certain NETGEAR devices are affected by command injection by an unauthenticated attacker. CVSS 3.1CRITICAL 9.8
  • TI-2020-18240 Certain NETGEAR devices are affected by a buffer overflow by an unauthenticated attacker. CVSS 3.1CRITICAL 9.8
  • TI-2018-15096 Certain NETGEAR devices are affected by a stack-based buffer overflow by an… CVSS 3.1CRITICAL 9.8
  • TI-2020-18244 Certain NETGEAR devices are affected by incorrect configuration of security settings. CVSS 3.1CRITICAL 9.4
See all 43 →

Sources

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