Vulnerability in Realtek Rtl8192er
CVE-2019-18990
A partial authentication bypass vulnerability exists on Realtek RTL8812AR 1.21WW, RTL8196D 1.0.0, RTL8192ER 2.10, and RTL8881AN 1.09 devices. The vulnerability allows sending an unencrypted data frame to a WPA2-protected WLAN router where the packet is routed through the network. If successful, a response is sent back as an encrypted frame, which would allow an attacker to discern information or potentially modify data.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.008 (53.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 53rd percentile — 53.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000
Affected products
- Realtek Rtl8192er
- Realtek Rtl8192er Firmware — versions 2.10
- Realtek Rtl8196d
- Realtek Rtl8196d Firmware — versions 1.0.0
- Realtek Rtl8812ar
- Realtek Rtl8812ar Firmware — versions 1.21ww
- Realtek Rtl8881an
- Realtek Rtl8881an Firmware — versions 1.09
Weakness classification (CWE)
References
- www.synopsys.com/blogs/software-security/cyrc-advisory-sept2020/ (Third Party Advisory)
Frequently asked questions
- What is CVE-2019-18990?
- CVE-2019-18990 is a medium-severity vulnerability in Realtek Rtl8192er, classified under Authentication Bypass by Spoofing. CVSS score: 5.4/10. Published 2020-09-30.
- How severe is CVE-2019-18990?
- Medium severity. CVSS v3 base score is 5.4 out of 10.