CVE-2025-12942

HIGH
Published Nov 11, 2025 Modified Dec 8, 2025 CWE-20

Description

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.

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CVSS v3.1 Score

7.5
HIGH
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness Type (CWE)

CWE-20 Improper Input Validation

Affected Products

Vendor Product
netgear r6260_firmware
netgear r6260
netgear r6850_firmware
netgear r6850

References

Frequently Asked Questions

What is CVE-2025-12942? +
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. It has a CVSS v3.1 base score of 7.5 (HIGH).
How severe is CVE-2025-12942? +
CVE-2025-12942 has a CVSS v3.1 score of 7.5 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.
What products are affected by CVE-2025-12942? +
CVE-2025-12942 affects products from netgear, specifically: r6260, r6260_firmware, r6850, r6850_firmware. Check the affected products table above for specific version ranges.
How do I check if I'm vulnerable to CVE-2025-12942? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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