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CVE-2020-26146

Published: May 11, 2021

Modified: Jun 2, 2026

PUBLISHED

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.

Vendor	Product	Versions
n/a	n/a	affected `n/a`

References

20210511 Multiple Vulnerabilities in Frame Aggregation and Fragmentation Implementations of 802.11 Specification Affecting Cisco Products: May 2021

vendor-advisory

x_refsource_CISCO

https://www.fragattacks.com

x_refsource_MISC

https://github.com/vanhoefm/fragattacks/blob/master/SUMMARY.md

x_refsource_MISC

[oss-security] 20210511 various 802.11 security issues - fragattacks.com

mailing-list

x_refsource_MLIST

https://cert-portal.siemens.com/productcert/pdf/ssa-913875.pdf

x_refsource_CONFIRM

https://www.arista.com/en/support/advisories-notices/security-advisories/12602-security-advisory-63

x_refsource_MISC

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