CVEvulnerability
CVE-2020-26142
5.3 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2021-05-11
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 5.3 MEDIUM — CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N
- CVSS 2.0 ([email protected])
- 2.6 LOW — AV:N/AC:H/Au:N/C:N/I:P/A:N
- Weaknesses
- CWE-74
Description
An issue was discovered in the kernel in OpenBSD 6.6. The WEP, WPA, WPA2, and WPA3 implementations treat fragmented frames as full frames. An adversary can abuse this to inject arbitrary network packets, independent of the network configuration.
Affected configurations
• openbsd openbsd 6.6
Related
Weakness · CWE (1)
- CWE-74 Improper Neutralization of Special Elements in Output Used by a Downstream Component weakness
References
- http://www.openwall.com/lists/oss-security/2021/05/11/12 Mailing List, Third Party Advisory
- https://github.com/vanhoefm/fragattacks/blob/master/SUMMARY.md Third Party Advisory
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-wifi-faf-22epcEWu Third Party Advisory
- https://www.arista.com/en/support/advisories-notices/security-advisories/12602-security-advisory-63 Third Party Advisory
- https://www.fragattacks.com Third Party Advisory
- http://www.openwall.com/lists/oss-security/2021/05/11/12 Mailing List, Third Party Advisory
- https://github.com/vanhoefm/fragattacks/blob/master/SUMMARY.md Third Party Advisory
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-wifi-faf-22epcEWu Third Party Advisory
- https://www.arista.com/en/support/advisories-notices/security-advisories/12602-security-advisory-63 Third Party Advisory
- https://www.fragattacks.com Third Party Advisory