Authenticated memory corruption via undisclosed stack overflow
Published Apr 21, 2020 · Updated Aug 5, 2024
Stack-based buffer overflow in NETGEAR router and gateway firmware allows remote authenticated users on an adjacent network to corrupt process memory. NETGEAR has not disclosed the affected component, accepted input, or unchecked copy operation that overruns the stack buffer. Exploitation requires high-privilege authentication from an adjacent network; the public record does not establish whether corruption causes a crash or code execution.
Summary
What happened
Stack-based buffer overflow in NETGEAR router and gateway firmware allows remote authenticated users on an adjacent network to corrupt process memory. NETGEAR has not disclosed the affected component, accepted input, or unchecked copy operation that overruns the stack buffer. Exploitation requires high-privilege authentication from an adjacent network; the public record does not establish whether corruption causes a crash or code execution.
The record
- CVE
- CVE-2018-21148
- Published
- Apr 21, 2020
- Updated
- Aug 5, 2024
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-787
- Attack vector
- adjacent
- Privileges
- admin
Timeline
How it unfolded
- Apr 21, 2020CVE publishedPublication date reported by the CVE source.
- Aug 5, 2024Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
What conditions does exploitation require?
What is affected?
Affected products and versions are unavailable in this record.
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.
Weakness, pattern, technique
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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