{"cve":"CVE-2020-26147","nvd":{"published":"2021-05-11T20:15:08.947","modified":"2026-06-17T03:07:42.610","status":"Modified","description":"An issue was discovered in the Linux kernel 5.8.9. The WEP, WPA, WPA2, and WPA3 implementations reassemble fragments even though some of them were sent in plaintext. This vulnerability can be abused to inject packets and/or exfiltrate selected fragments when another device sends fragmented frames and the WEP, CCMP, or GCMP data-confidentiality protocol is used.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:L/I:H/A:N","score":5.4},"cwes":[],"references":["http://www.openwall.com/lists/oss-security/2021/05/11/12","https://cert-portal.siemens.com/productcert/pdf/ssa-913875.pdf","https://github.com/vanhoefm/fragattacks/blob/master/SUMMARY.md","https://lists.debian.org/debian-lts-announce/2021/06/msg00019.html","https://lists.debian.org/debian-lts-announce/2021/06/msg00020.html"],"products":["arista:c-65_firmware","arista:c-75_firmware","arista:o-90_firmware","arista:w-68_firmware","debian:debian_linux","linux:linux_kernel","siemens:scalance_w1700_ieee_802.11ac_firmware","siemens:scalance_w700_ieee_802.11n_firmware"],"source":"nvd","synced_at":"2026-10-19T21:18:09.669877188+00:00"},"epss":{"cve":"CVE-2020-26147","score":0.07604,"percentile":0.94548,"date":"2026-11-01"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}