CVE-2026-11733

Administrator-triggered service interruption via buffer overflow

Published Aug 11, 2026 · Updated Aug 11, 2026

Buffer overflow in NETGEAR Nighthawk router firmware before 1.1.6.36 allows remote authenticated users to interrupt device operation. NETGEAR has not disclosed the affected firmware component, input field, or unchecked operation that overwrites the stack buffer. Exploitation requires administrator privileges and adjacent-network access, and the interruption is temporary with no reported data impact.

CVSS severity1.1
Low
EPSS probability0.51%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Buffer overflow in NETGEAR Nighthawk router firmware before 1.1.6.36 allows remote authenticated users to interrupt device operation. NETGEAR has not disclosed the affected firmware component, input field, or unchecked operation that overwrites the stack buffer. Exploitation requires administrator privileges and adjacent-network access, and the interruption is temporary with no reported data impact.

The record

CVE
CVE-2026-11733
Published
Aug 11, 2026
Updated
Aug 11, 2026
Vendor
NETGEAR
Product
RAX42
Classifications
CWE-121, CAPEC-100, T1499.004
Attack vector
adjacent
Privileges
admin

Timeline

How it unfolded

  1. Aug 11, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 11, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=0 <V1.1.6.36

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesadmin

What is affected?

NETGEAR · RAX42version=0 <V1.1.6.36
NETGEAR · RAX42v2version=0 <V1.1.6.36
NETGEAR · RAX54Sv2version=0 <V1.1.6.36
NETGEAR · RAX41v2version=0 <V1.1.6.36
NETGEAR · RAX43version=0 <V1.1.6.36
NETGEAR · RAX50v2version=0 <V1.1.6.36
NETGEAR · RAX43v2version=0 <V1.1.6.36
NETGEAR · RAX49Sversion=0 <V1.1.6.36
NETGEAR · RAX54Sversion=0 <V1.1.6.36
NETGEAR · RAX41version=0 <V1.1.6.36
NETGEAR · RAX50version=0 <V1.1.6.36

Published CVSS scores

1.1NETGEARCVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-121Stack-based Buffer Overflow
CAPEC-100Overflow Buffers
T1499.004Application or System Exploitation

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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