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CVE-2020-27302

25
FAUCET Score

CVE-2020-27302 describes a stack buffer overflow vulnerability in Realtek RTL8710 and other Ameba-based devices, allowing remote code execution. An attacker within Wi-Fi range can trigger this by sending a specially crafted "Encrypted GTK" value during the WPA2 4-way handshake. This vulnerability carries a high CVSS score of 8.0, indicating a severe impact with high confidentiality, integrity, and availability compromise, requiring only adjacent network access and low privileges. While no active exploitation or public exploit code is currently reported, and community discussion is minimal, the potential for remote code execution makes it a significant concern for affected Realtek products.

Impacted Technologies

VendorProductVersion(s)CPE
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:o:realtek:rtl8710c_firmware:-:*:*:*:*:*:*:*
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:o:realtek:rtl8195a_firmware:-:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.0HIGH

CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.1
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
2.01%
Probability of exploitation in next 30 days
EPSS Percentile
78.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0201 is in the 84th percentile among its peer group of 554 CVEs.

Social Chatter

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

vdoo.com / blog/realtek-wifi-vulnerabilities-zero-day
ExploitThird Party Advisory