CVE-2020-26144

Name: CVE-2020-26144
Creator: NVD / NIST
Published: 2021-05-11T20:15:08.837+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 4.91%

Last modified Jun 17, 2026

CVE-2020-26144 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. 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. EPSS estimates a 4.91% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

6.5/10

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

EPSS Probability

4.91%

91.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-20

Affected Software

Vendor	Product	Versions
Samsung	Galaxy I9305 Firmware	4.4.4
Arista	C-250 Firmware	< 10.0.1-31
Arista	C-260 Firmware	< 10.0.1-31
Arista	C-230 Firmware	< 10.0.1-31
Arista	C-235 Firmware	< 10.0.1-31
Arista	C-200 Firmware	< 11.0.0-36
Arista	C-120 Firmware	< 11.0.0-36
Arista	C-130 Firmware	< 11.0.0-36
Arista	C-100 Firmware	< 11.0.0-36
Arista	C-110 Firmware	< 11.0.0-36
Arista	O-105 Firmware	< 11.0.0-36
Arista	W-118 Firmware	< 11.0.0-36
Arista	C-75 Firmware	All versions
Arista	O-90 Firmware	All versions
Arista	C-65 Firmware	All versions
Arista	W-68 Firmware	All versions
Siemens	Scalance W700 Ieee 802.11ax Firmware	All versions
Siemens	Scalance W700 Ieee 802.11n Firmware	All versions

References

http://www.openwall.com/lists/oss-security/2021/05/11/12Mailing List, Third Party Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-913875.pdfThird Party Advisory
https://github.com/vanhoefm/fragattacks/blob/master/SUMMARY.mdThird Party Advisory
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-wifi-faf-22epcEWuThird Party Advisory
https://www.arista.com/en/support/advisories-notices/security-advisories/12602-security-advisory-63Third Party Advisory
https://www.fragattacks.comThird Party Advisory
http://www.openwall.com/lists/oss-security/2021/05/11/12Mailing List, Third Party Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-913875.pdfThird Party Advisory
https://github.com/vanhoefm/fragattacks/blob/master/SUMMARY.mdThird Party Advisory
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-wifi-faf-22epcEWuThird Party Advisory
https://www.arista.com/en/support/advisories-notices/security-advisories/12602-security-advisory-63Third Party Advisory
https://www.fragattacks.comThird Party Advisory
https://cert-portal.siemens.com/productcert/html/ssa-019200.html
https://cert-portal.siemens.com/productcert/html/ssa-913875.html

Timeline

Published: May 11, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-26144?

How severe is CVE-2020-26144?

CVE-2020-26144 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 4.91% probability of exploitation in the next 30 days.

How do I fix CVE-2020-26144?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-26144?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST