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Vulnerability Details :

CVE-2025-8299

Summary
Assigner-zdi
Assigner Org ID-99f1926a-a320-47d8-bbb5-42feb611262e
Published At-02 Sep, 2025 | 20:02
Updated At-03 Sep, 2025 | 14:33
Rejected At-
Credits

Realtek rtl81xx SDK Wi-Fi Driver MgntActSet_TEREDO_SET_RS_PACKET Heap-based Buffer Overflow Local Privilege Escalation Vulnerability

Realtek rtl81xx SDK Wi-Fi Driver MgntActSet_TEREDO_SET_RS_PACKET 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 MgntActSet_TEREDO_SET_RS_PACKET 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-25857.

Vendors
-
Not available
Products
-
Metrics (CVSS)
VersionBase scoreBase severityVector
Weaknesses
Attack Patterns
Solution/Workaround
References
HyperlinkResource Type
EPSS History
Score
Latest Score
-
N/A
No data available for selected date range
Percentile
Latest Percentile
-
N/A
No data available for selected date range
Stakeholder-Specific Vulnerability Categorization (SSVC)
â–¼Common Vulnerabilities and Exposures (CVE)
cve.org
Assigner:zdi
Assigner Org ID:99f1926a-a320-47d8-bbb5-42feb611262e
Published At:02 Sep, 2025 | 20:02
Updated At:03 Sep, 2025 | 14:33
Rejected At:
â–¼CVE Numbering Authority (CNA)
Realtek rtl81xx SDK Wi-Fi Driver MgntActSet_TEREDO_SET_RS_PACKET Heap-based Buffer Overflow Local Privilege Escalation Vulnerability

Realtek rtl81xx SDK Wi-Fi Driver MgntActSet_TEREDO_SET_RS_PACKET 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 MgntActSet_TEREDO_SET_RS_PACKET 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-25857.

Affected Products
Vendor
Realtek Semiconductor Corp.Realtek
Product
rtl81xx SDK
Default Status
unknown
Versions
Affected
  • 1030.38.712.2019
Problem Types
TypeCWE IDDescription
CWECWE-122CWE-122: Heap-based Buffer Overflow
Type: CWE
CWE ID: CWE-122
Description: CWE-122: Heap-based Buffer Overflow
Metrics
VersionBase scoreBase severityVector
3.08.8HIGH
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Version: 3.0
Base score: 8.8
Base severity: HIGH
Vector:
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions

Configurations

Workarounds

Exploits

Credits

Timeline
EventDate
Replaced By

Rejected Reason

References
HyperlinkResource
https://www.zerodayinitiative.com/advisories/ZDI-25-882/
x_research-advisory
Hyperlink: https://www.zerodayinitiative.com/advisories/ZDI-25-882/
Resource:
x_research-advisory
â–¼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions

Configurations

Workarounds

Exploits

Credits

Timeline
EventDate
Replaced By

Rejected Reason

References
HyperlinkResource
Information is not available yet
â–¼National Vulnerability Database (NVD)
nvd.nist.gov
Source:zdi-disclosures@trendmicro.com
Published At:02 Sep, 2025 | 20:15
Updated At:10 Sep, 2025 | 14:59

Realtek rtl81xx SDK Wi-Fi Driver MgntActSet_TEREDO_SET_RS_PACKET 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 MgntActSet_TEREDO_SET_RS_PACKET 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-25857.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Secondary3.08.8HIGH
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Type: Secondary
Version: 3.0
Base score: 8.8
Base severity: HIGH
Vector:
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
CPE Matches

Realtek Semiconductor Corp.
realtek
>>wi-fi_usb_driver>>Versions before 1030.52.0325.2025(exclusive)
cpe:2.3:a:realtek:wi-fi_usb_driver:*:*:*:*:*:windows:*:*
Realtek Semiconductor Corp.
realtek
>>rtl8811au>>-
cpe:2.3:h:realtek:rtl8811au:-:*:*:*:*:*:*:*
Weaknesses
CWE IDTypeSource
CWE-122Primaryzdi-disclosures@trendmicro.com
CWE ID: CWE-122
Type: Primary
Source: zdi-disclosures@trendmicro.com
Evaluator Description

Evaluator Impact

Evaluator Solution

Vendor Statements

References
HyperlinkSourceResource
https://www.zerodayinitiative.com/advisories/ZDI-25-882/zdi-disclosures@trendmicro.com
Third Party Advisory
Hyperlink: https://www.zerodayinitiative.com/advisories/ZDI-25-882/
Source: zdi-disclosures@trendmicro.com
Resource:
Third Party Advisory

Change History

0
Information is not available yet

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Matching Score-10
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Matching Score-10
Assigner-Zero Day Initiative
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EPSS-0.01% / 2.15%
||
7 Day CHG~0.00%
Published-02 Sep, 2025 | 20:02
Updated-10 Sep, 2025 | 15:00
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Known To Be Used In Ransomware Campaigns?-Not Available
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Action-Not Available
Vendor-Realtek Semiconductor Corp.
Product-wi-fi_usb_driverrtl8811aurtl81xx SDK
CWE ID-CWE-122
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EPSS-0.01% / 2.15%
||
7 Day CHG~0.00%
Published-02 Sep, 2025 | 20:02
Updated-10 Sep, 2025 | 15:00
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
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Realtek rtl81xx SDK Wi-Fi Driver rtwlanu Heap-based Buffer Overflow Local Privilege Escalation Vulnerability

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-26553.

Action-Not Available
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Known To Be Used In Ransomware Campaigns?-Not Available
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KEV Action Due Date-Not Available
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Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
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Action-Not Available
Vendor-level1LevelOneleveloneRealtek Semiconductor Corp.
Product-wbr-6013_firmwarewbr-6013rtl819x_jungle_software_development_kitrtl819x Jungle SDKWBR-6013rtl819x_software_development_kitwbr-6013
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Heap-based Buffer Overflow
CWE ID-CWE-787
Out-of-bounds Write
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Matching Score-4
Assigner-Zero Day Initiative
ShareView Details
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Assigner-Zero Day Initiative
CVSS Score-8.8||HIGH
EPSS-0.10% / 27.83%
||
7 Day CHG~0.00%
Published-29 Apr, 2021 | 16:31
Updated-03 Aug, 2024 | 22:55
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

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Action-Not Available
Vendor-Parallels International Gmbh
Product-parallels_desktopDesktop
CWE ID-CWE-122
Heap-based Buffer Overflow
Details not found