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CVE-2025-8302

25
FAUCET Score

CVE-2025-8302 describes a heap-based buffer overflow vulnerability in the Realtek rtl81xx SDK Wi-Fi driver, specifically within the N6CSet_DOT11_CIPHER_DEFAULT_KEY function. This flaw affects Realtek rtl8811au and Wi-Fi USB drivers, allowing a local attacker to escalate privileges. The vulnerability has a CVSS score of 8.8 (High), indicating a significant risk. It requires local access and low privileges (AV:L/PR:L) but can lead to complete compromise of confidentiality, integrity, and availability (C:H/I:H/A:H) by allowing arbitrary code execution as SYSTEM. Currently, there is no public exploit code available (Metasploit, Nuclei, ExploitDB), nor is it listed in CISA's KEV catalog, suggesting it is not being actively exploited in the wild. Community discussion and media coverage are minimal, which is typical for most CVEs.

Impacted Technologies

VendorProductVersion(s)CPE
< 1030.52.0325.2025CPE matchmatch criteria
cpe:2.3:a:realtek:wi-fi_usb_driver:*:*:*:*:*:windows:*:*

CVSS Data

CVSS version used by this source: 3.0

8.8HIGH

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.0
Impact Score
6.0
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.14%
Probability of exploitation in next 30 days
EPSS Percentile
3.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0014 is in the 16th percentile among its peer group of 17,070 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

zerodayinitiative.com / advisories/ZDI-25-879
Third Party Advisory