CVE-2020-27301
CVE-2020-27301 is a high-severity vulnerability in Realtek Rtl8710c Firmware with a CVSS 3.x base score of 8.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-787.
Key facts
- Severity: High (CVSS 3.x base score 8.0)
- CVSS v2: 7.7
- EPSS exploit prediction: 2% (78th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-787
- Affected product: Realtek Rtl8710c Firmware
- Published:
- Last modified:
Description
A stack buffer overflow in Realtek RTL8710 (and other Ameba-based devices) can lead to remote code execution via the "AES_UnWRAP" function, when an attacker in Wi-Fi range sends a crafted "Encrypted GTK" value as part of the WPA2 4-way-handshake.
Frequently asked questions
- What is CVE-2020-27301?
- A stack buffer overflow in Realtek RTL8710 (and other Ameba-based devices) can lead to remote code execution via the "AES_UnWRAP" function, when an attacker in Wi-Fi range sends a crafted "Encrypted GTK" value as part of the WPA2 4-way-handshake.
- How severe is CVE-2020-27301?
- CVE-2020-27301 has a CVSS 3.x base score of 8.0, rated high severity. It is exploitable over an adjacent network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2020-27301 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (78th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2020-27301?
- CVE-2020-27301 primarily affects Realtek Rtl8710c Firmware. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2020-27301?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2020-27301 published?
- CVE-2020-27301 was published on 2021-06-04 and last updated on 2026-06-17.
References
Affected products (2)
- cpe:2.3:o:realtek:rtl8710c_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:realtek:rtl8195a_firmware:-:*:*:*:*:*:*:*
More vulnerabilities in Realtek Rtl8710c Firmware
- CVE-2020-27302 — High (CVSS 8.0): A stack buffer overflow in Realtek RTL8710 (and other Ameba-based devices) can lead to remote code execution via the…
All CVEs affecting Realtek Rtl8710c Firmware →
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