CVE-2020-26145
lowpriority · track · 27EPSS 0.035 · 89 %ileDEEURUUSEPSS · scored 2026-10-27
An issue was discovered on Samsung Galaxy S3 i9305 4.4.4 devices. The WEP, WPA, WPA2, and WPA3 implementations accept second (or subsequent) broadcast fragments even when sent in plaintext and process them as full unfragmented frames. An adversary can abuse this to inject arbitrary network packets independent of the network configuration.
remediations
Vendor fix, mitigation, or workaround guidance, as published by each source.
A vendor fix is available.
- FixedSCALANCE WAM763-1 (6GK5763-1AL00-7DA0)siemens_psirt
Update to V1.2.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109805887/ - FixedSCALANCE WAM766-1 (6GK5766-1GE00-7DA0)siemens_psirt
Update to V1.2.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109805887/ - FixedSCALANCE WAM766-1 (US) (6GK5766-1GE00-7DB0)siemens_psirt
Update to V1.2.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109805887/ - FixedSCALANCE WAM766-1 EEC (6GK5766-1GE00-7TA0)siemens_psirt
Update to V1.2.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109805887/ - FixedSCALANCE WAM766-1 EEC (US) (6GK5766-1GE00-7TB0)siemens_psirt
Update to V1.2.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109805887/ - FixedSCALANCE WUM763-1 (6GK5763-1AL00-3AA0)siemens_psirt
Update to V1.2.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109805887/ - FixedSCALANCE WUM763-1 (6GK5763-1AL00-3DA0)siemens_psirt
Update to V1.2.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109805887/ - FixedSCALANCE WUM766-1 (6GK5766-1GE00-3DA0)siemens_psirt
Update to V1.2.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109805887/ - FixedSCALANCE WUM766-1 (USA) (6GK5766-1GE00-3DB0)siemens_psirt
Update to V1.2.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109805887/ - FixedCisco Aironet Access Point Softwarecisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Aironet Access Point Software (IOS XE Controller)cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Business Wireless Access Point Softwarecisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco IP Phones with Multiplatform Firmwarecisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco TelePresence Endpoint Software (TC/CE)cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Webex Room Phonecisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedTropOScisa_csaf_ot
Disable the Wi-Fi access on any TropOS unit where local Wi-Fi access is not required. This is achieved by NOT enabling (or disabling) the local access SSID.
- FixedSCALANCE WAM763-1 (6GK5763-1AL00-7DA0)cisa_csaf_ot
Update to V1.2.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109805887/ - FixedSCALANCE WAM766-1 (6GK5766-1GE00-7DA0)cisa_csaf_ot
Update to V1.2.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109805887/ - FixedSCALANCE WAM766-1 (US) (6GK5766-1GE00-7DB0)cisa_csaf_ot
Update to V1.2.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109805887/ - FixedSCALANCE WAM766-1 EEC (6GK5766-1GE00-7TA0)cisa_csaf_ot
Update to V1.2.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109805887/ - FixedSCALANCE WAM766-1 EEC (US) (6GK5766-1GE00-7TB0)cisa_csaf_ot
Update to V1.2.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109805887/ - FixedSCALANCE WUM763-1 (6GK5763-1AL00-3AA0)cisa_csaf_ot
Update to V1.2.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109805887/ - FixedSCALANCE WUM763-1 (6GK5763-1AL00-3DA0)cisa_csaf_ot
Update to V1.2.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109805887/ - FixedSCALANCE WUM766-1 (6GK5766-1GE00-3DA0)cisa_csaf_ot
Update to V1.2.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109805887/ - FixedSCALANCE WUM766-1 (USA) (6GK5766-1GE00-3DB0)cisa_csaf_ot
Update to V1.2.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109805887/ - MitigationSCALANCE WAM763-1 (6GK5763-1AL00-7DA0)siemens_psirt
As these vulnerabilities can only be exploited within Wi-Fi range, when possible reduce Wi-Fi transmission power or make sure to have the devices in private areas with physical access controls
- MitigationSCALANCE WAM766-1 (6GK5766-1GE00-7DA0)siemens_psirt
As these vulnerabilities can only be exploited within Wi-Fi range, when possible reduce Wi-Fi transmission power or make sure to have the devices in private areas with physical access controls
- MitigationSCALANCE WAM766-1 (US) (6GK5766-1GE00-7DB0)siemens_psirt
As these vulnerabilities can only be exploited within Wi-Fi range, when possible reduce Wi-Fi transmission power or make sure to have the devices in private areas with physical access controls
- MitigationSCALANCE WAM766-1 EEC (6GK5766-1GE00-7TA0)siemens_psirt
As these vulnerabilities can only be exploited within Wi-Fi range, when possible reduce Wi-Fi transmission power or make sure to have the devices in private areas with physical access controls
- MitigationSCALANCE WAM766-1 EEC (US) (6GK5766-1GE00-7TB0)siemens_psirt
As these vulnerabilities can only be exploited within Wi-Fi range, when possible reduce Wi-Fi transmission power or make sure to have the devices in private areas with physical access controls
- MitigationSCALANCE WUM763-1 (6GK5763-1AL00-3AA0)siemens_psirt
As these vulnerabilities can only be exploited within Wi-Fi range, when possible reduce Wi-Fi transmission power or make sure to have the devices in private areas with physical access controls
- MitigationSCALANCE WUM763-1 (6GK5763-1AL00-3DA0)siemens_psirt
As these vulnerabilities can only be exploited within Wi-Fi range, when possible reduce Wi-Fi transmission power or make sure to have the devices in private areas with physical access controls
- MitigationSCALANCE WUM766-1 (6GK5766-1GE00-3DA0)siemens_psirt
As these vulnerabilities can only be exploited within Wi-Fi range, when possible reduce Wi-Fi transmission power or make sure to have the devices in private areas with physical access controls
- MitigationSCALANCE WUM766-1 (USA) (6GK5766-1GE00-3DB0)siemens_psirt
As these vulnerabilities can only be exploited within Wi-Fi range, when possible reduce Wi-Fi transmission power or make sure to have the devices in private areas with physical access controls
- MitigationTropOScisa_csaf_ot
As the FragAttacks vulnerability is targeted at an end-user device and generally involves redirection to fraudulent websites, the installation of comprehensive firewall capabilities on company end-user devices and servers will significantly reduce the likelihood of negative outcomes.
- MitigationSCALANCE WAM763-1 (6GK5763-1AL00-7DA0)cisa_csaf_ot
As these vulnerabilities can only be exploited within Wi-Fi range, when possible reduce Wi-Fi transmission power or make sure to have the devices in private areas with physical access controls
- MitigationSCALANCE WAM766-1 (6GK5766-1GE00-7DA0)cisa_csaf_ot
As these vulnerabilities can only be exploited within Wi-Fi range, when possible reduce Wi-Fi transmission power or make sure to have the devices in private areas with physical access controls
- MitigationSCALANCE WAM766-1 (US) (6GK5766-1GE00-7DB0)cisa_csaf_ot
As these vulnerabilities can only be exploited within Wi-Fi range, when possible reduce Wi-Fi transmission power or make sure to have the devices in private areas with physical access controls
- MitigationSCALANCE WAM766-1 EEC (6GK5766-1GE00-7TA0)cisa_csaf_ot
As these vulnerabilities can only be exploited within Wi-Fi range, when possible reduce Wi-Fi transmission power or make sure to have the devices in private areas with physical access controls
- MitigationSCALANCE WAM766-1 EEC (US) (6GK5766-1GE00-7TB0)cisa_csaf_ot
As these vulnerabilities can only be exploited within Wi-Fi range, when possible reduce Wi-Fi transmission power or make sure to have the devices in private areas with physical access controls
- MitigationSCALANCE WUM763-1 (6GK5763-1AL00-3AA0)cisa_csaf_ot
As these vulnerabilities can only be exploited within Wi-Fi range, when possible reduce Wi-Fi transmission power or make sure to have the devices in private areas with physical access controls
- MitigationSCALANCE WUM763-1 (6GK5763-1AL00-3DA0)cisa_csaf_ot
As these vulnerabilities can only be exploited within Wi-Fi range, when possible reduce Wi-Fi transmission power or make sure to have the devices in private areas with physical access controls
- MitigationSCALANCE WUM766-1 (6GK5766-1GE00-3DA0)cisa_csaf_ot
As these vulnerabilities can only be exploited within Wi-Fi range, when possible reduce Wi-Fi transmission power or make sure to have the devices in private areas with physical access controls
- MitigationSCALANCE WUM766-1 (USA) (6GK5766-1GE00-3DB0)cisa_csaf_ot
As these vulnerabilities can only be exploited within Wi-Fi range, when possible reduce Wi-Fi transmission power or make sure to have the devices in private areas with physical access controls
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–medium · 3.3–6.5
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (114)
Products and version ranges known to be affected.
advisories (7)
Vendor and ecosystem advisories describing this.
- SSA-913875SSA-913875: Frame Aggregation and Fragmentation Vulnerabilities in 802.112021-07-13csaf · siemens_psirtDE
Twelve vulnerabilities in the implementation of frame aggregation and fragmentation of the 802.11 standard, under the name of FragAttacks, have been published. Successful exploitation of these vulnerabilities could allow an attacker within Wi-Fi range to forge encrypted frames, which could result in sensitive data disclosure and possibly traffic manipulation. The advised Siemens products are only affected by some of the published vulnerabilities. Siemens has released new versions for several affected products and recommends to update to the latest versions. Siemens recommends specific countermeasures for products where fixes are not, or not yet available.
- WID-SEC-W-2022-2069IEEE 802.11 (WLAN): Mehrere SchwachstellenDeutsch2021-05-11csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in der IEEE 802.11 Spezifikation und zahlreichen Implementierungen ausnutzen, um Sicherheitsvorkehrungen zu umgehen, Netzwerkverkehr zu manipulieren und um Informationen offenzulegen.
- WID-SEC-W-2025-1522Linux Kernel: Mehrere Schwachstellen ermöglichen Denial of ServiceDeutsch2025-07-09csaf · cert_bundDE
Ein entfernter Angreifer kann mehrere Schwachstellen im Linux Kernel ausnutzen, um einen Denial of Service Angriff durchzuführen oder nicht spezifizierte Auswirkungen zu verursachen.
- cisco-sa-wifi-faf-22epcEWuMultiple Vulnerabilities in Frame Aggregation and Fragmentation Implementations of 802.11 Specification Affecting Cisco Products: May 20212021-05-11csaf · cisco_csafUS
On May 11, 2021, the research paper Fragment and Forge: Breaking Wi-Fi Through Frame Aggregation and Fragmentation was made public. This paper discusses 12 vulnerabilities in the 802.11 standard. One vulnerability is in the frame aggregation functionality, two vulnerabilities are in the frame fragmentation functionality, and the other nine are implementation vulnerabilities. These vulnerabilities could allow an attacker to forge encrypted frames, which could in turn enable the exfiltration of sensitive data from a targeted device. This advisory will be updated as additional information becomes available.
- ICSA-21-236-01Hitachi ABB Power Grids TropOS2021-08-24icsa · cisa_csaf_otUS
Successful exploitation of these vulnerabilities could allow an attacker to direct a client that is connected to a TropOS Wi-Fi access point to fake websites and extract sensitive data.
- ICSA-22-104-04Siemens SCALANCE FragAttacks2021-07-13icsa · cisa_csaf_otUS
Twelve vulnerabilities in the implementation of frame aggregation and fragmentation of the 802.11 standard, under the name of FragAttacks, have been published. Successful exploitation of these vulnerabilities could allow an attacker within Wi-Fi range to forge encrypted frames, which could result in sensitive data disclosure and possibly traffic manipulation. The advised Siemens products are only affected by some of the published vulnerabilities. Siemens has released new versions for several affected products and recommends to update to the latest versions. Siemens recommends specific countermeasures for products where fixes are not, or not yet available.
- ASB-A-1779109012021-10-01vendor · osvUS
also known as (8)
Other names and identifiers for this entity.
- CNNVD-202105-631cnnvd
- EUVD-2020-18772enisa_euvd
- BDU:2021-03175fstec_bdu
- GHSA-c6qp-cf89-h54cenisa_euvd
- 2860245osv
- 2868035osv
- 2893212osv
- A-177910901osv
sources
Which sources assert this record, and when.
references (44)
External citations — patches, advisories, analysis.
- http://www.openwall.com/lists/oss-security/2021/05/11/12cnnvd
- https://cert-portal.siemens.com/productcert/pdf/ssa-913875.pdfcnnvd
- https://device.harmonyos.com/cn/docs/security/update/security-bulletins-phones-202111-0000001218088197cnnvd
- https://docs.qualcomm.com/product/publicresources/securitybulletin/august-2021-bulletin.htmlPatchcnnvd
- https://github.com/vanhoefm/fragattacks/blob/master/SUMMARY.mdcnnvd
- https://packetstormsecurity.com/files/163249/Ubuntu-Security-Notice-USN-4997-1.htmlcnnvd
- https://packetstormsecurity.com/files/163291/Ubuntu-Security-Notice-USN-5000-2.htmlcnnvd
- https://packetstormsecurity.com/files/164875/Red-Hat-Security-Advisory-2021-4140-02.htmlcnnvd
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