CVE-2025-12942

Command execution via malicious DNS responses

Published Nov 11, 2025 · Updated Nov 11, 2025

Improper input validation in NETGEAR R6260 and R6850 firmware through 1.1.0.86 allows remote attackers to execute commands. NETGEAR has not disclosed the affected firmware component or how attacker-controlled DNS data reaches a command interpreter. Exploitation requires LAN access, a man-in-the-middle position, and control of the router's DNS server; successful attacks execute commands on the router.

CVSS severity7.5
High
EPSS probability0.30%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper input validation in NETGEAR R6260 and R6850 firmware through 1.1.0.86 allows remote attackers to execute commands. NETGEAR has not disclosed the affected firmware component or how attacker-controlled DNS data reaches a command interpreter. Exploitation requires LAN access, a man-in-the-middle position, and control of the router's DNS server; successful attacks execute commands on the router.

The record

CVE
CVE-2025-12942
Published
Nov 11, 2025
Updated
Nov 11, 2025
Vendor
NETGEAR
Product
AC1600 Smart WiFi Router Dual Band Gigabit (R6260)
Classifications
CWE-20, T1557
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 11, 2025CVE publishedPublication date reported by the CVE source.
  2. Nov 11, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=1.1.0.86

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

NETGEAR · AC1600 Smart WiFi Router Dual Band Gigabit (R6260)version=0 <=1.1.0.86
NETGEAR · AC2000 Smart WiFi Router Wi‑Fi 5 Dual Band Gigabit (R6850)version=0 <=1.1.0.86

Published CVSS scores

7.5NIST NVDCVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
4.8NETGEARCVSS:4.0/AV:A/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-20Improper Input Validation
T1557Adversary-in-the-Middle

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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