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    CVE-2020-26146

    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.

    Published:May 11, 2021
    Last Modified:Jun 2, 2026
    EPS:May 11, 2021
    EPSS Score:0.00359
    CVSS Score:5.3

    Affected Products

    Vendor
    Arista
    Product
    C-100
    Vendor
    Arista
    Product
    C-100 Firmware
    Vendor
    Arista
    Product
    C-110
    Vendor
    Arista
    Product
    C-110 Firmware
    Vendor
    Arista
    Product
    C-120
    Vendor
    Arista
    Product
    C-120 Firmware
    Vendor
    Arista
    Product
    C-130
    Vendor
    Arista
    Product
    C-130 Firmware
    Vendor
    Arista
    Product
    C-200
    Vendor
    Arista
    Product
    C-200 Firmware
    Vendor
    Arista
    Product
    C-230
    Vendor
    Arista
    Product
    C-230 Firmware
    Vendor
    Arista
    Product
    C-235
    Vendor
    Arista
    Product
    C-235 Firmware
    Vendor
    Arista
    Product
    C-250
    Vendor
    Arista
    Product
    C-250 Firmware
    Vendor
    Arista
    Product
    C-260
    Vendor
    Arista
    Product
    C-260 Firmware
    Vendor
    Arista
    Product
    C-65
    Vendor
    Arista
    Product
    C-65 Firmware
    Vendor
    Arista
    Product
    C-75
    Vendor
    Arista
    Product
    C-75 Firmware
    Vendor
    Arista
    Product
    O-105
    Vendor
    Arista
    Product
    O-105 Firmware
    Vendor
    Arista
    Product
    O-90
    Vendor
    Arista
    Product
    O-90 Firmware
    Vendor
    Arista
    Product
    W-118
    Vendor
    Arista
    Product
    W-118 Firmware
    Vendor
    Arista
    Product
    W-68
    Vendor
    Arista
    Product
    W-68 Firmware
    Vendor
    Redhat
    Product
    Enterprise Linux
    Vendor
    Samsung
    Product
    Galaxy I9305
    Vendor
    Samsung
    Product
    Galaxy I9305 Firmware
    Vendor
    Siemens
    Product
    Scalance W1700 Ieee 802.11ac
    Vendor
    Siemens
    Product
    Scalance W1700 Ieee 802.11ac Firmware
    Vendor
    Siemens
    Product
    Scalance W1750d
    Vendor
    Siemens
    Product
    Scalance W1750d Firmware
    Vendor
    Siemens
    Product
    Scalance W700 Ieee 802.11n
    Vendor
    Siemens
    Product
    Scalance W700 Ieee 802.11n Firmware

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-10 Buffer Overflow via Environment Variables
    CAPEC-101 Server Side Include (SSI) Injection
    CAPEC-104 Cross Zone Scripting
    CAPEC-108 Command Line Execution through SQL Injection
    CAPEC-109 Object Relational Mapping Injection
    CAPEC-110 SQL Injection through SOAP Parameter Tampering
    CAPEC-120 Double Encoding
    CAPEC-13 Subverting Environment Variable Values
    CAPEC-135 Format String Injection
    CAPEC-136 LDAP Injection
    CAPEC-14 Client-side Injection-induced Buffer Overflow
    CAPEC-153 Input Data Manipulation
    CAPEC-16 Dictionary-based Password Attack
    CAPEC-182 Flash Injection
    CAPEC-209 XSS Using MIME Type Mismatch
    CAPEC-22 Exploiting Trust in Client
    CAPEC-23 File Content Injection
    CAPEC-230 Serialized Data with Nested Payloads
    CAPEC-231 Oversized Serialized Data Payloads
    CAPEC-24 Filter Failure through Buffer Overflow
    CAPEC-250 XML Injection
    CAPEC-261 Fuzzing for garnering other adjacent user/sensitive data
    CAPEC-267 Leverage Alternate Encoding
    CAPEC-28 Fuzzing
    CAPEC-3 Using Leading 'Ghost' Character Sequences to Bypass Input Filters
    CAPEC-31 Accessing/Intercepting/Modifying HTTP Cookies
    CAPEC-42 MIME Conversion
    CAPEC-43 Exploiting Multiple Input Interpretation Layers
    CAPEC-45 Buffer Overflow via Symbolic Links
    CAPEC-46 Overflow Variables and Tags
    CAPEC-47 Buffer Overflow via Parameter Expansion
    CAPEC-473 Signature Spoof
    CAPEC-49 Password Brute Forcing
    CAPEC-52 Embedding NULL Bytes
    CAPEC-53 Postfix, Null Terminate, and Backslash
    CAPEC-560 Use of Known Domain Credentials
    CAPEC-565 Password Spraying
    CAPEC-588 DOM-Based XSS
    CAPEC-600 Credential Stuffing
    CAPEC-63 Cross-Site Scripting (XSS)
    CAPEC-64 Using Slashes and URL Encoding Combined to Bypass Validation Logic
    CAPEC-652 Use of Known Kerberos Credentials
    CAPEC-653 Use of Known Operating System Credentials
    CAPEC-664 Server Side Request Forgery
    CAPEC-67 String Format Overflow in syslog()
    CAPEC-7 Blind SQL Injection
    CAPEC-71 Using Unicode Encoding to Bypass Validation Logic
    CAPEC-72 URL Encoding
    CAPEC-73 User-Controlled Filename
    CAPEC-78 Using Escaped Slashes in Alternate Encoding
    CAPEC-79 Using Slashes in Alternate Encoding
    CAPEC-8 Buffer Overflow in an API Call
    CAPEC-80 Using UTF-8 Encoding to Bypass Validation Logic
    CAPEC-81 Web Server Logs Tampering
    CAPEC-83 XPath Injection
    CAPEC-85 AJAX Footprinting
    CAPEC-88 OS Command Injection
    CAPEC-9 Buffer Overflow in Local Command-Line Utilities

    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
    https://www.fragattacks.com
    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
    https://www.fragattacks.com
    https://cert-portal.siemens.com/productcert/html/ssa-019200.html
    https://cert-portal.siemens.com/productcert/html/ssa-913875.html

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High