CVE-2020-26144

An issue was discovered on Samsung Galaxy S3 i9305 4.4.4 devices. The WEP, WPA, WPA2, and WPA3 implementations accept plaintext A-MSDU frames as long as the first 8 bytes correspond to a valid RFC1042 (i.e., LLC/SNAP) header for EAPOL. An adversary can abuse this to inject arbitrary network packets independent of the network configuration.

CVSS 3.1

6.5CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

EPSS

4.9% chance of exploitation in the next 30 days; higher than 92% of CVEs (scores of 2026-10-25)

CWE

CWE-20

Published

2021-05-11

Modified

2026-10-08

Record from

the NVD, synced 2026-10-19

Affected

• arista:c-100_firmware
• arista:c-110_firmware
• arista:c-120_firmware
• arista:c-130_firmware
• arista:c-200_firmware
• arista:c-230_firmware
• arista:c-235_firmware
• arista:c-250_firmware
• arista:c-260_firmware
• arista:c-65_firmware
• arista:c-75_firmware
• arista:o-105_firmware
• arista:o-90_firmware
• arista:w-118_firmware
• arista:w-68_firmware
• samsung:galaxy_i9305_firmware
• siemens:scalance_w700_ieee_802.11ax_firmware
• siemens:scalance_w700_ieee_802.11n_firmware

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://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-wifi-faf-22epcEWu
• https://www.arista.com/en/support/advisories-notices/security-advisories/12602-security-advisory-63

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