Improper input validation in NETGEAR R6260 and R6850
Priority LOW 24CWE-20Published · Updated
Key facts
- Attack vector
- Adjacent network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- High
- Attack requirements
- Present
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA.
Summary
Improper Input Validation vulnerability in NETGEAR R6260 and NETGEAR R6850 allows unauthenticated attackers connected to LAN with ability to perform MiTM attacks and control over DNS Server to perform command execution.This issue affects R6260: through 1.1.0.86; R6850: through 1.1.0.86.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00318 24th 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
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| NETGEAR | R6260 | up to 1.1.0.86 | — | No fix listed | CNA |
| NETGEAR | R6850 | up to 1.1.0.86 | — | No fix listed | CNA |
- R6260 VendorNETGEAR Affected up to 1.1.0.86 Fixed in — No fix listed CNA
- R6850 VendorNETGEAR Affected up to 1.1.0.86 Fixed in — No fix listed CNA
CPE configurations NVD · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:netgear:r6260_firmware:*:*:*:*:*:*:*:* | before 1.1.0.86 | Vulnerable | NETGEAR |
| cpe:2.3:h:netgear:r6260:-:*:*:*:*:*:*:* | not specified by NVD | Running on | NETGEAR |
| cpe:2.3:o:netgear:r6850_firmware:*:*:*:*:*:*:*:* | before 1.1.0.86 | Vulnerable | NETGEAR |
| cpe:2.3:h:netgear:r6850:-:*:*:*:*:*:*:* | not specified by NVD | Running on | NETGEAR |
- cpe:2.3:o:netgear:r6260_firmware:*:*:*:*:*:*:*:* Versions before 1.1.0.86 Vulnerable ·NETGEAR
- cpe:2.3:h:netgear:r6260:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NETGEAR
- cpe:2.3:o:netgear:r6850_firmware:*:*:*:*:*:*:*:* Versions before 1.1.0.86 Vulnerable ·NETGEAR
- cpe:2.3:h:netgear:r6850:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NETGEAR
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2025-12942
- 2026-10-03 Alias added: GHSA-83g8-4c46-g95x
References
More NETGEAR R6260 Firmware vulnerabilities
- TI-2021-20598 Certain NETGEAR devices are affected by authentication bypass. CVSS 3.1CRITICAL 9.8
- TI-2020-16934 Authentication bypass in NETGEAR Multiple Routers CVSS 3.1HIGH 8.8
- TI-2021-20588 Certain NETGEAR devices are affected by authentication bypass. CVSS 3.1CRITICAL 9.8
- TI-2021-16116 Certain NETGEAR devices are affected by lack of access control at the function level. CVSS 3.1CRITICAL 10.0
- TI-2020-16335 Certain NETGEAR devices are affected by authentication bypass. CVSS 3.1CRITICAL 9.8
- TI-2021-20724 Certain NETGEAR devices are affected by a stack-based buffer overflow by an… CVSS 3.1CRITICAL 9.8
Sources
- CVE-2025-12942 · CVE Program
- CVE-2025-12942 · NVD
- FIRST EPSS
- GHSA-83g8-4c46-g95x · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences