CVE-2020-26147
MediumAn 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 3.1 score
5.4
CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:L/I:H/A:N
References
The following references provide additional information about CVE-2020-26147 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.
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Third Party Advisory
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Third Party Advisory
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Mailing List Third Party Advisory
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Mailing List Third Party Advisory
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Toolshttps://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-wifi-faf-22epcEWuThird Party Advisory
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Aristahttps://www.arista.com/en/support/advisories-notices/security-advisories/12602-security-advisory-63Third Party Advisory
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Fragattackshttps://www.fragattacks.comProduct
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PatchKernel patch commithttp://www.openwall.com/lists/oss-security/2021/05/11/12
Frequently asked questions
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What is CVE-2020-26147?
CVE-2020-26147 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.4 out of 10 . CVE-2020-26147 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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What is the CVSS score for CVE-2020-26147?
CVE-2020-26147 has a CVSS score of 5.4 out of 10, rated Medium severity (CVSS 3.1). The vector string is
CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:L/I:H/A:N. -
Is there a patch available for CVE-2020-26147?
No patch is currently available for CVE-2020-26147. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
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Is CVE-2020-26147 actively exploited?
No — CVE-2020-26147 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.