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CVE-2020-26144

MEDIUM
6.5
CVSS Score
Published: May 11, 2021 at 07:33 PM UTC
Updated: October 8, 2026 at 10:16 PM UTC
44 products affected across 3 vendorsScalance W700 Ieee 802.11n FirmwareW 68 FirmwareC 65 Firmware· also runs on 18 platforms

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Severity
MEDIUM6.5
Exploit prediction
EPSS 5%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

C 100 Firmware· Arista
95%
v < 11.0.0-36*
Affected range stops below 11.0.0-36, so it looks safe — our inference, not a vendor statement
arista-c-100 (same device)
C 110 Firmware· Arista
95%
v < 11.0.0-36*
Affected range stops below 11.0.0-36, so it looks safe — our inference, not a vendor statement
arista-c-110 (same device)
C 120 Firmware· Arista
95%
v < 11.0.0-36*
Affected range stops below 11.0.0-36, so it looks safe — our inference, not a vendor statement
arista-c-120 (same device)
C 130 Firmware· Arista
95%
v < 11.0.0-36*
Affected range stops below 11.0.0-36, so it looks safe — our inference, not a vendor statement
arista-c-130 (same device)
C 200 Firmware· Arista
95%
v < 11.0.0-36*
Affected range stops below 11.0.0-36, so it looks safe — our inference, not a vendor statement
arista-c-200 (same device)
C 230 Firmware· Arista
95%
v < 10.0.1-31*
Affected range stops below 10.0.1-31, so it looks safe — our inference, not a vendor statement
arista-c-230 (same device)
C 235 Firmware· Arista
95%
v < 10.0.1-31*
Affected range stops below 10.0.1-31, so it looks safe — our inference, not a vendor statement
arista-c-235 (same device)
C 250 Firmware· Arista
95%
v < 10.0.1-31*
Affected range stops below 10.0.1-31, so it looks safe — our inference, not a vendor statement
arista-c-250 (same device)
C 260 Firmware· Arista
95%
v < 10.0.1-31*
Affected range stops below 10.0.1-31, so it looks safe — our inference, not a vendor statement
arista-c-260 (same device)
C 65 Firmware· Arista
95%
-
arista-c-65 (same device)

Runs on — not affected

The affected product only carries this flaw when running on these platforms. The platforms themselves are not vulnerable.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (8)

Mailing Listx_refsource_MLISTThird Party Advisory
Source: [email protected]
http://www.openwall.com/lists/oss-security/2021/05/11/12
x_refsource_CONFIRMThird Party Advisory
Source: [email protected]
https://cert-portal.siemens.com/productcert/pdf/ssa-913875.pdf
x_refsource_MISCThird Party Advisory
Source: [email protected]
https://github.com/vanhoefm/fragattacks/blob/master/SUMMARY.md
Vendor Advisoryx_refsource_CISCOThird Party Advisory
Source: [email protected]
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-wifi-faf-22epcEWu
x_refsource_MISCThird Party Advisory
Source: [email protected]
https://www.arista.com/en/support/advisories-notices/security-advisories/12602-security-advisory-63
x_refsource_MISCThird Party Advisory
Source: [email protected]
https://www.fragattacks.com
Source: 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
https://cert-portal.siemens.com/productcert/html/ssa-019200.html
Source: 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
https://cert-portal.siemens.com/productcert/html/ssa-913875.html

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.5MEDIUM[email protected]
Attack Vector
ADJACENT_NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
HIGH
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-20

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