Improper input validation in Alfa Awus036h
CVE-2020-26143
An issue was discovered in the ALFA Windows 10 driver 1030.36.604 for AWUS036ACH. The WEP, WPA, WPA2, and WPA3 implementations accept fragmented plaintext frames in a protected Wi-Fi network. An adversary can abuse this to inject arbitrary data frames independent of the network configuration.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.
EPSS exploit prediction
EPSS: 0.042 (90.9th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 91st percentile — 90.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.042 · newest: 0.042 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-wifi-faf… (vendor-advisory, Third Party Advisory)
- www.fragattacks.com (Third Party Advisory)
- github.com/vanhoefm/fragattacks/blob/master/SUMMARY.md (Third Party Advisory)
- www.openwall.com/lists/oss-security/2021/05/11/12 (mailing-list, Mailing List, Third Party Advisory)
- cert-portal.siemens.com/productcert/pdf/ssa-913875.pdf (Third Party Advisory)
- www.arista.com/en/support/advisories-notices/security-advisories/12602-security… (Third Party Advisory)
- 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
- 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
Frequently asked questions
- What is CVE-2020-26143?
- CVE-2020-26143 is a medium-severity vulnerability in Alfa Awus036h, classified under Improper Input Validation. CVSS score: 6.5/10. Published 2021-05-11.
- How severe is CVE-2020-26143?
- Medium severity. CVSS v3 base score is 6.5 out of 10.
- Is CVE-2020-26143 known to be exploited?
- 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.