Firmware modification via undisclosed stack overflow
Published Aug 11, 2026 · Updated Aug 11, 2026
Stack-based buffer overflow in NETGEAR Nighthawk router firmware allows remote authenticated users to modify device software. NETGEAR has not disclosed the affected component, input field, or copy operation that overruns the stack buffer. Reachability requires administrator credentials and local-network access; the documented consequence is unauthorized firmware and functionality modification, not data disclosure or service interruption.
Summary
What happened
Stack-based buffer overflow in NETGEAR Nighthawk router firmware allows remote authenticated users to modify device software. NETGEAR has not disclosed the affected component, input field, or copy operation that overruns the stack buffer. Reachability requires administrator credentials and local-network access; the documented consequence is unauthorized firmware and functionality modification, not data disclosure or service interruption.
The record
- CVE
- CVE-2026-11735
- Published
- Aug 11, 2026
- Updated
- Aug 11, 2026
- Vendor
- NETGEAR
- Product
- RAX35v2
- Classifications
- CWE-121, T1601.001
- Attack vector
- adjacent
- Privileges
- admin
Timeline
How it unfolded
- Aug 11, 2026CVE publishedPublication date reported by the CVE source.
- Aug 11, 2026Record 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.
- Affected versionversion=0 <V1.0.16.132
What conditions does exploitation require?
What is affected?
Published CVSS scores
No CVSS assessment is available in this record.
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.
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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