Root code execution via firmware parsing overflow
Published May 3, 2024 · Updated Sep 18, 2024
CISA maps a stack-based buffer overflow to Xiaomi Mi Router AX1800 Firmware before 3230219, but the CNA identifies TP-Link AX1800. The published flaw copies attacker-controlled firmware-image data into a fixed-length stack buffer without validating its length, enabling root code execution. Exploitation requires adjacent network access but no authentication; the product conflict prevents confirming that this mechanism affects Xiaomi firmware.
Summary
What happened
CISA maps a stack-based buffer overflow to Xiaomi Mi Router AX1800 Firmware before 3230219, but the CNA identifies TP-Link AX1800. The published flaw copies attacker-controlled firmware-image data into a fixed-length stack buffer without validating its length, enabling root code execution. Exploitation requires adjacent network access but no authentication; the product conflict prevents confirming that this mechanism affects Xiaomi firmware.
The record
- CVE
- CVE-2023-27346
- Published
- May 3, 2024
- Updated
- Sep 18, 2024
- Vendor
- Xiaomi Corporation
- Product
- Mi Router AX1800 Firmware
- Classifications
- CWE-121
- Attack vector
- adjacent
- Privileges
- unauthenticated
Timeline
How it unfolded
- May 3, 2024CVE publishedPublication date reported by the CVE source.
- Sep 18, 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?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0 <3230219
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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