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CVE-2020-26146

5.3 · MEDIUM

An issue was discovered on Samsung Galaxy S3 i9305 4.4.4 devices.

Published May 11, 2021CWE-20EPSS 5.62%

Overview

CVE-2020-26146 is a medium-severity vulnerability. It was published on May 11, 2021 and has a CVSS 3.1 base score of 5.3 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.3, rated MEDIUM. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

Technical description

An issue was discovered on Samsung Galaxy S3 i9305 4.4.4 devices. The WPA, WPA2, and WPA3 implementations reassemble fragments with non-consecutive packet numbers. An adversary can abuse this to exfiltrate selected fragments. This vulnerability is exploitable when another device sends fragmented frames and the WEP, CCMP, or GCMP data-confidentiality protocol is used. Note that WEP is vulnerable to this attack by design.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refwww.openwall.com/lists/oss-security/2021/05/11/12Refcert-portal.siemens.com/productcert/pdf/ssa-913875.pdfGitHubgithub.com/vanhoefm/fragattacks/blob/master/SUMMARY.mdReftools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-wifi-faf-22epcEWuRefwww.arista.com/en/support/advisories-notices/security-advisories/12602-security-advisory-63Refwww.fragattacks.comRefwww.openwall.com/lists/oss-security/2021/05/11/12Refcert-portal.siemens.com/productcert/pdf/ssa-913875.pdfGitHubgithub.com/vanhoefm/fragattacks/blob/master/SUMMARY.mdReftools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-wifi-faf-22epcEWu

How CyberStrike helps

Frequently asked questions

What is CVE-2020-26146?

CVE-2020-26146 is a medium-severity vulnerability. It was published on May 11, 2021 and has a CVSS 3.1 base score of 5.3 (MEDIUM).

How severe is CVE-2020-26146?

This vulnerability has a CVSS 3.1 base score of 5.3, rated MEDIUM. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2020-26146?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2020-26146?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2020-26146 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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