Realtek rtl81xx SDK Wi-Fi Driver rtwlanu Heap-based Buffer Overflow Local Privilege Escalation Vulnerability
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
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| Realtek | rtl81xx SDK | unknown |
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Configuration 1 [-]
| AND |
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No data.
| Vendor | Product | Versions |
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| Realtek | Realtek Sdk | — |
| Source | ID | Title |
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EUVD |
EUVD-2025-26430 | Realtek rtl81xx SDK Wi-Fi Driver rtwlanu Heap-based Buffer Overflow Local Privilege Escalation Vulnerability. This vulnerability allows local attackers to escalate privileges on affected installations of Realtek rtl81xx SDK Wi-Fi driver. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the N6CSet_DOT11_CIPHER_DEFAULT_KEY function. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length heap-based buffer. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of SYSTEM. Was ZDI-CAN-26552. |
No CVSS v4.0
No CVSS v3.1
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.152% probability within 30 days)
| Link | Providers |
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| https://www.zerodayinitiative.com/advisories/ZDI-25-883/ |
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| Type | Values Removed | Values Added |
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| First Time appeared |
Realtek rtl8811au
Realtek wi-fi Usb Driver |
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| CPEs | cpe:2.3:a:realtek:wi-fi_usb_driver:*:*:*:*:*:windows:*:* cpe:2.3:h:realtek:rtl8811au:-:*:*:*:*:*:*:* |
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| Vendors & Products |
Realtek rtl8811au
Realtek wi-fi Usb Driver |
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| First Time appeared |
Realtek
Realtek realtek Sdk |
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| Vendors & Products |
Realtek
Realtek realtek Sdk |
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| Metrics |
ssvc
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| Description | Realtek rtl81xx SDK Wi-Fi Driver rtwlanu Heap-based Buffer Overflow Local Privilege Escalation Vulnerability. This vulnerability allows local attackers to escalate privileges on affected installations of Realtek rtl81xx SDK Wi-Fi driver. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the N6CSet_DOT11_CIPHER_DEFAULT_KEY function. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length heap-based buffer. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of SYSTEM. Was ZDI-CAN-26552. | |
| Title | Realtek rtl81xx SDK Wi-Fi Driver rtwlanu Heap-based Buffer Overflow Local Privilege Escalation Vulnerability | |
| Weaknesses | CWE-122 | |
| References |
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| Metrics |
cvssV3_0
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