CVE-2020-27302: realtek rtl8195a_firmware Out-of-bounds Write
CVSS: 8.0v3.1HighModified
Published 04-06-2021Last modified 04-08-2024
Vulnerability summary
CVE-2020-27302 is a high (CVSS 8.0) Out-of-bounds Write vulnerability in realtek rtl8195a_firmware. EPSS estimates a 2.01% chance of exploitation in the next 30 days, higher than 80.5% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
8.0/10
010
High · v3.1 (NVD)EPSS score
2.01%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference
Timeline
- 04-06-2021PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
A stack buffer overflow in Realtek RTL8710 (and other Ameba-based devices) can lead to remote code execution via the "memcpy" function, when an attacker in Wi-Fi range sends a crafted "Encrypted GTK" value as part of the WPA2 4-way-handshake.
CVSS metrics
2 scores · 1 source · 2 versionsHigh 8.0Preferred score · NVD (NIST)
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HSourcesSingle source
High 7.7Preferred score · NVD (NIST)
AV:A/AC:L/Au:S/C:C/I:C/A:CSourcesSingle source
EPSS trend
Probability
2.01%
Chance of exploitation in the next 30 days
Percentile
81%
Versus all other CVEs
30-day change
0.00 pp
From 2.01% on 20-09-2026
20-09-202620-10-2026
EPSS score2.01%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundExploit Reference (vdoo.com)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Realtek2 products
1 vendor · 2 products