BlackTreeCVE Intelligence
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Full vulnerability report · 2021
CVE-2020-26144High confidence

An issue was discovered on Samsung Galaxy S3 i9305 4.4.4 devices

Unknown · Unknown

Official source articles: Siemens SSA-019200 ↗ · Cisco CISCO-SA-WIFI-FAF-22EPCEWU ↗. Check the applicable product and release in the original source.

6.5MediumCVSS 3.1
Recommended action
Patch only the product branches with a verified fix

Medium technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority. Verified remediation exists for at least one product or source, but 108 structured product or package states remain unresolved. Apply remediation only to the exact product branch confirmed by its source.

Fix availability varies by product
R
Operational reassessment

Published severity in operational context

Open reassessment dashboard →
Published severityMediumOperational priority:Medium, unchanged from published severity.unchanged

Evidence used

  • No CISA KEV confirmation is currently recorded.
  • EPSS is 4.91% for the current model date.

Compensating controls

  • Validate the affected product branch and deploy the verified fixed release.
  • Restrict local access and enforce least privilege on affected hosts.
  • Monitor vendor guidance and exploitation sources for a material change.

Verification

  1. Confirm that the asset runs Unknown Unknown and falls inside the recorded affected range.
  2. Verify the installed build against the product-specific fixed version after deployment.
  3. Validate exposure, authentication requirements and compensating controls in the actual environment.
  4. Reopen this reassessment when CVSS, KEV, EPSS, exploit evidence or remediation changes.
Mitigation target: As exposure requiresRemediation target: Within 365 days

This automated reassessment organises public evidence. It does not know asset exposure, business impact or control effectiveness and does not replace CVSS or a human risk decision.

Cross-source reconciliation

Remediation availability differs by product scope

Verified remediation exists for at least one product or source, but 108 structured product or package states remain unresolved. Apply remediation only to the exact product branch confirmed by its source.

Distribution package intelligence

Release-specific package status

ubuntu findings are scoped to the named distribution, release and source package. An absent finding does not mean a package is unaffected.

1 package state
Package result overrides the generic status

BlackTree has verified remediation for at least one product or source, but the relevant distribution still reports no fixed package for 1 affected package state shown here. Treat those rows as affected with no fix until that distribution publishes a fixed version.

Repository candidate not checked

A published vendor fix does not prove that a matching update is enabled and installable on a particular asset. Confirm the local package candidate before scheduling remediation.

Distribution releaseSource packageVendor stateFixed versionEvidence
Ubuntu 24.04 LTSnoble · standard archivelinux-raspi-realtimeAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Direct vendor intelligence

Authoritative vendor CSAF and VEX advisories

Structured product status and remediation from the issuing vendor. Product-state explanations are always visible; large lists can be searched or downloaded.

2 current
SSA-019200 · CSAF 2.0 · revision 1 · interimSiemens ProductCERTSSA-019200: Multiple Vulnerabilities in SCALANCE W-700 IEEE 802.11n Devices Before V6.6.0
49 known affected

The vendor explicitly identifies these products as affected by this CVE.

  • SCALANCE W721-1 RJ45 (6GK5721-1FC00-0AA0)
  • SCALANCE W721-1 RJ45 (6GK5721-1FC00-0AB0)
  • SCALANCE W722-1 RJ45 (6GK5722-1FC00-0AA0)
  • SCALANCE W722-1 RJ45 (6GK5722-1FC00-0AB0)
  • SCALANCE W722-1 RJ45 (6GK5722-1FC00-0AC0)
  • SCALANCE W734-1 RJ45 (6GK5734-1FX00-0AA0)
  • SCALANCE W734-1 RJ45 (6GK5734-1FX00-0AA6)
  • SCALANCE W734-1 RJ45 (6GK5734-1FX00-0AB0)
  • SCALANCE W734-1 RJ45 (USA) (6GK5734-1FX00-0AB6)
  • SCALANCE W738-1 M12 (6GK5738-1GY00-0AA0)
  • SCALANCE W738-1 M12 (6GK5738-1GY00-0AB0)
  • SCALANCE W748-1 M12 (6GK5748-1GD00-0AA0)
Summary
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.
Remediation
Update to V6.6.0 or later version
SSA-913875 · CSAF 2.0 · revision 6 · interimSiemens ProductCERTSSA-913875: Frame Aggregation and Fragmentation Vulnerabilities in 802.11
58 known affected

The vendor explicitly identifies these products as affected by this CVE.

  • SCALANCE W721-1 RJ45 (6GK5721-1FC00-0AA0)
  • SCALANCE W721-1 RJ45 (6GK5721-1FC00-0AB0)
  • SCALANCE W722-1 RJ45 (6GK5722-1FC00-0AA0)
  • SCALANCE W722-1 RJ45 (6GK5722-1FC00-0AB0)
  • SCALANCE W722-1 RJ45 (6GK5722-1FC00-0AC0)
  • SCALANCE W734-1 RJ45 (6GK5734-1FX00-0AA0)
  • SCALANCE W734-1 RJ45 (6GK5734-1FX00-0AA6)
  • SCALANCE W734-1 RJ45 (6GK5734-1FX00-0AB0)
  • SCALANCE W734-1 RJ45 (USA) (6GK5734-1FX00-0AB6)
  • SCALANCE W738-1 M12 (6GK5738-1GY00-0AA0)
  • SCALANCE W738-1 M12 (6GK5738-1GY00-0AB0)
  • SCALANCE W748-1 M12 (6GK5748-1GD00-0AA0)
Summary
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.
Remediation
Update to V1.2.0 or later version
Optional official sources

National CERT insights
?CERT means Computer Emergency Response Team; CSIRT is the closely related term Computer Security Incident Response Team.

Choose official national sources for this report. Each advisory shows its original language. Your selection is remembered on this device and included in shared links.

Official European source

ENISA European Vulnerability Database

Official EUVD identifiers, advisory evidence and known-exploited context. Missing fields are not treated as evidence of low risk.

1 current
ENISA EUVD identifier

EUVD-2020-18771

No EUVD known-exploited evidence

ENISA has published the identifier mapping but no EUVD description has been stored yet.

EUVD state
Present in the current official mapping
Known exploitation
Not present in the current ENISA EUVD known-exploited dataset. This is not proof of no exploitation.
ENISA score
Not supplied in the stored EUVD record
Advisory evidence
No linked advisory details stored yet
Recommended actionPatch only the product branches with a verified fix

Medium technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority. Verified remediation exists for at least one product or source, but 108 structured product or package states remain unresolved. Apply remediation only to the exact product branch confirmed by its source.

Fix availability varies by product
01

What, why and how

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.

What

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.

Why

The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

How

An attacker operating through the affected interface may attempt exploitation without authentication or user interaction. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

What

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.

Why

The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

How

An attacker operating through the affected interface may attempt exploitation without authentication or user interaction. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

02

Exploit reality and attack path

CVSS severity, EPSS forecast probability, public exploit material and CISA-confirmed exploitation are separate signals.

Observed exploitation
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
No confirmed evidence

No CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.

Public PoC / exploit material
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
None recorded

No exploit-tagged reference or CISA SSVC proof-of-concept state is currently recorded. Research may still exist outside the structured feeds.

Likely attack path
the affected interface → Improper Input Validation → cause the confidentiality, integrity or availability impact described by the vendor
Attack surface
Unspecified
Privileges required
None: unauthenticated exploitation is possible
User interaction
None
Attack complexity
Low: no specialised conditions are recorded
Security boundary
Unchanged: impact remains within the vulnerable component's security authority
Weakness
?CWE means Common Weakness Enumeration: a standard category for the underlying weakness.
CWE-20 ↗

CWE-20: Improper Input Validation. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

CVSS vector
?CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Common Vulnerability Scoring System 3.1: the compact vector below is decoded into plain language.

AVAdjacentAttack vector: The attacker must be on an adjacent or logically close network.ACLowAttack complexity: No specialised conditions are required beyond attacker-controlled input.PRNonePrivileges required: The attacker does not need an account or existing privileges.UINoneUser interaction: No action by another user is required.SUnchangedScope: The security impact remains within the vulnerable component's authority.CNoneConfidentiality impact: No direct loss is represented by this metric.IHighIntegrity impact: A successful attack can cause a major loss.ANoneAvailability impact: No direct loss is represented by this metric.
Post-exploitation / living off the land
No specific living-off-the-land technique is confirmed in the structured sources. Monitor normal administration tools for activity inconsistent with the affected service's baseline.
UnauthenticatedCWE-20
A

Official authority intelligence

Only matched European and national findings are included. Language selectors and unavailable sources are omitted.

BSI · German · WID-SEC-2022-2069IEEE 802.11 (WLAN): Mehrere Schwachstellen

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.

Official advisory ↗
Cyber Security Agency of Singapore · English · CSA-SB-20210512Security Bulletin 12 May 2021

The Cyber Security Agency of Singapore included this CVE in its official Security Bulletin 12 May 2021, published on 12 May 2021. Open the linked bulletin for the product, severity and reference information published in that issue.

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0432Multiples vulnérabilités dans les produits Siemens

De multiples vulnérabilités ont été découvertes dans les produits Siemens. Certaines d'entre elles permettent à un attaquant de provoquer une exécution de code arbitraire à distance, une élévation de privilèges et un déni de service à distance.

Official advisory ↗
CERT-FR · French · CERTFR-2022-AVI-706Multiples vulnérabilités dans les produits Belden

De multiples vulnérabilités ont été découvertes dans les produits Belden. Elles permettent à un attaquant de provoquer un déni de service et une atteinte à la confidentialité des données.

Official advisory ↗
CERT-FR · French · CERTFR-2022-AVI-245Multiples vulnérabilités dans Belden HiLCOS

De multiples vulnérabilités ont été découvertes dans Belden HiLCOS. Elles permettent à un attaquant de provoquer une atteinte à l'intégrité des données et une atteinte à la confidentialité des données.

Official advisory ↗
CERT-FR · French · CERTFR-2022-AVI-124Multiples vulnérabilités dans les produits Siemens

d?id=CVE-2020-24507 Référence CVE CVE-2020-24511 https://www.cve.org/CVERecord?id=CVE-2020-24511 Référence CVE CVE-2020-24512 https://www.cve.org/CVERecord?id=CVE-2020-24512 Référence CVE CVE-2020-24513 https://www.cve.org/CVERecord?id=CVE-2020-24513 Référence CVE CVE-2020-24588 https://www.cve.org/CVERecord?id=CVE-2020-24588 Référence CVE CVE-2020-26139 https://www.cve.org/CVERecord?id=CVE-2020-26139 Référence CVE CVE-2020-26140 https://www.cve.org/CVERecord?id=CVE-2020-26140 Référence CVE CVE-2020-26141 https://www.cve.org/CVERecord?id=CVE-2020-26141 Référence CVE CVE-2020-26143 https://www.cve.org/CVERecord?id=CVE-2020-26143 Référence CVE CVE-2020-26144 https://www.cve.org/CVERecord?id=CVE-2020-26144 Référence CVE CVE-2020-26145 https://www.cve.org/CVERecord?id=CVE-2020-26145 Référence CVE CVE-2020-26146 https://www.cve.org/CVERecord?id=CVE-2020-26146 Référence CVE CVE-2020-26147 https://www.cve.org/CVERecord?id=CVE-2020-26147 Référence CVE CVE-2020-28400 https://www.cve.org/CVERecord?id=CVE-2020-28400 Référence CVE CVE-2020-8670 https://www.cve.org/CVERecord?id=CVE-2020-8670 Référence CVE CVE-2020-8703 https://www.cve.org/CVERecord?id=CVE-2020-8703 Référence CVE CVE-2020-8704 https://www.cve.org/CVERecord?id=CVE-2020-8704 Référence CVE CVE-2021-20093 https://www.cve.org/CVERecord?id=CVE-20

Official advisory ↗
CERT-FR · French · CERTFR-2021-AVI-864Multiples vulnérabilités dans le noyau Linux de Red Hat

d?id=CVE-2020-24503 Référence CVE CVE-2020-24504 https://www.cve.org/CVERecord?id=CVE-2020-24504 Référence CVE CVE-2020-24586 https://www.cve.org/CVERecord?id=CVE-2020-24586 Référence CVE CVE-2020-24587 https://www.cve.org/CVERecord?id=CVE-2020-24587 Référence CVE CVE-2020-24588 https://www.cve.org/CVERecord?id=CVE-2020-24588 Référence CVE CVE-2020-26139 https://www.cve.org/CVERecord?id=CVE-2020-26139 Référence CVE CVE-2020-26140 https://www.cve.org/CVERecord?id=CVE-2020-26140 Référence CVE CVE-2020-26141 https://www.cve.org/CVERecord?id=CVE-2020-26141 Référence CVE CVE-2020-26143 https://www.cve.org/CVERecord?id=CVE-2020-26143 Référence CVE CVE-2020-26144 https://www.cve.org/CVERecord?id=CVE-2020-26144 Référence CVE CVE-2020-26145 https://www.cve.org/CVERecord?id=CVE-2020-26145 Référence CVE CVE-2020-26146 https://www.cve.org/CVERecord?id=CVE-2020-26146 Référence CVE CVE-2020-26147 https://www.cve.org/CVERecord?id=CVE-2020-26147 Référence CVE CVE-2020-27777 https://www.cve.org/CVERecord?id=CVE-2020-27777 Référence CVE CVE-2020-29368 https://www.cve.org/CVERecord?id=CVE-2020-29368 Référence CVE CVE-2020-29660 https://www.cve.org/CVERecord?id=CVE-2020-29660 Référence CVE CVE-2020-36158 https://www.cve.org/CVERecord?id=CVE-2020-36158 Référence CVE CVE-2020-36386 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2021-AVI-367Multiples vulnérabilités dans Microsoft Windows

mettent à un attaquant de provoquer une élévation de privilèges, une exécution de code à distance, une atteinte à la confidentialité des données, une usurpation d'identité, un déni de service et un contournement de la fonctionnalité de sécurité. Solution Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation). Documentation Bulletin de sécurité Microsoft du 11 mai 2021 https://portal.msrc.microsoft.com/fr-FR/security-guidance Référence CVE CVE-2020-24587 https://www.cve.org/CVERecord?id=CVE-2020-24587 Référence CVE CVE-2020-24588 https://www.cve.org/CVERecord?id=CVE-2020-24588 Référence CVE CVE-2020-26144 https://www.cve.org/CVERecord?id=CVE-2020-26144 Référence CVE CVE-2021-28455 https://www.cve.org/CVERecord?id=CVE-2021-28455 Référence CVE CVE-2021-28476 https://www.cve.org/CVERecord?id=CVE-2021-28476 Référence CVE CVE-2021-28479 https://www.cve.org/CVERecord?id=CVE-2021-28479 Référence CVE CVE-2021-31165 https://www.cve.org/CVERecord?id=CVE-2021-31165 Référence CVE CVE-2021-31166 https://www.cve.org/CVERecord?id=CVE-2021-31166 Référence CVE CVE-2021-31167 https://www.cve.org/CVERecord?id=CVE-2021-31167 Référence CVE CVE-2021-31168 https://www.cve.org/CVERecord?id=CVE-2021-31168 Référence CVE CVE-2021-31169 https://www.cve.org/CVERecord?id=

Official advisory ↗
JVN iPedia · Japanese · JVNDB-2021-006940Samsung Galaxy S3 i9305 デバイスにおける入力確認に関する脆弱性

Samsung Galaxy S3 i9305 デバイスには、入力確認に関する脆弱性が存在します。

Official advisory ↗
KISA KrCERT/CC · Korean · KNVD-5312MS 5월 보안 위협에 따른 정기 보안 업데이트 권고

승 취약성 Windows Container Manager Service CVE-2021-31165 Windows 컨테이너 관리자 서비스 권한 상승 취약성 Windows CSC Service CVE-2021-28479 Windows CSC 서비스 정보 유출 취약성 Windows Desktop Bridge CVE-2021-31185 Windows 데스크톱 브리지 서비스 거부 취약성 Windows OLE CVE-2021-31194 OLE 자동화 원격 코드 실행 취약성 Windows Projected File System FS Filter CVE-2021-31191 Windows 프로젝트에 파일 시스템 FS 필터 드라이버 정보 유출 취약성 Windows RDP Client CVE-2021-31186 Windows RDP(원격 데스크톱 프로토콜) 정보 유출 취약성 Windows SMB CVE-2021-31205 Windows SMB 클라이언트 보안 기능 우회 취약성 Windows SSDP Service CVE-2021-31193 Windows SSDP Service 권한 상승 취약성 Windows WalletService CVE-2021-31187 Windows WalletService 권한 상승 취약성 Windows Wireless Networking CVE-2020-26144 Windows 무선 네트워크 스푸핑 취약성 Windows Wireless Networking CVE-2020-24588 Windows 무선 네트워크 스푸핑 취약성 Windows Wireless Networking CVE-2020-24587 Windows 무선 네트워크 정보 유출 취약성 ##### □ 작성 : 침해사고분석단 취약점분석팀

Official advisory ↗
NCSC-NL · Dutch · NCSC-2026-0112Kwetsbaarheden verholpen in Siemens producten

Multiple vulnerabilities affect Samsung Galaxy S3 i9305 devices, Linux kernel WiFi implementations, and Windows Wireless Networking, allowing attackers to inject or spoof network packets by exploiting acceptance of plaintext A-MSDU frames with valid RFC1042 headers for EAPOL.

Official advisory ↗
03

Patch and workaround

Operational remediation based on structured source evidence.

Status
?Patch availability is based on structured fixed-version fields and authoritative update references. If no fix is verified, check the vendor advisory before making a change.
Fix availability varies by product
Affected
Fixed
Update to V6.6.0 or later version
Action
Use the product-specific evidence above. Patch only products with a verified fixed release, and keep every affected or under-investigation state without a matching fix in the remediation queue.
Workaround
No verified workaround is recorded. Limit untrusted access and use least privilege until authoritative guidance is available.
04

Evidence and provenance

Published 11 May 2021 · Last source change 14 Apr 2026, 08:49 UTC · CWE-20 · Improper Input Validation

CVE recordCVE.org · 5.2
CVSS sourceNIST NVD
EPSS source
?The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.
FIRST · tracked since 2026-08-14
European sourceENISA EUVD · EUVD-2020-18771
Product sourceVendor CSAF · Siemens ProductCERT
Remediation sourceVendor CSAF · Siemens ProductCERT
CWE sourceNIST NVD
NVD statusNVD modified after enrichment

Missing structured fields: affected product. Missing data is not evidence of low risk; review the primary advisory.

Material change intelligence

What changed after publication

View recent updates ↗
  1. Affected versionsThe structured affected or fixed version information changed.
    Before
    n/a · Fixed: No fixed version is explicitly recorded in the structured CVE data.
    After
    n/a · Fixed: Update to V6.6.0 or later version
    Siemens ProductCERT ↗
  2. Remediation statusRemediation status changed from Awaiting fix to Patch available.
    Before
    Awaiting fix
    After
    Patch available
    Siemens ProductCERT ↗
Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
CVE published
Fixed release recorded from official guidance
ENISA EUVD · EUVD-2020-18771↗Siemens ProductCERT security advisory · Siemens SSA-019200↗CVE authority or vendor reference · Cisco CISCO-SA-WIFI-FAF-22EPCEWU↗Official CVE record (CNA and ADP data)↗NVD record↗
Technical terms and abbreviations used in this report
CVE
Common Vulnerabilities and Exposures: the public identifier for one disclosed vulnerability.
CVSS
Common Vulnerability Scoring System: a technical severity framework; it is not patching priority by itself.
EPSS
Exploit Prediction Scoring System: FIRST's estimate of the probability that exploitation activity will be observed in the next 30 days; it is a forecast, not confirmation.
CWE
Common Weakness Enumeration: the standard category describing the underlying software or hardware weakness.
CNA
CVE Numbering Authority: an organisation authorised to assign and publish CVE records.
CISA ADP
Cybersecurity and Infrastructure Security Agency Authorized Data Publisher: structured enrichment added to a CVE record.
NVD
National Vulnerability Database: NIST's enrichment service for CVE records.
CERT / CSIRT
A computer security incident response team that publishes warnings or coordinates incident response.
PoC
Proof of concept: public material that demonstrates or helps reproduce exploitation.
CSAF
Common Security Advisory Framework: a machine-readable format for security advisories.
LoTL
Living off the land: abuse of legitimate tools or system functions during an attack.
Free version - for non-commercial use only.CVE-2020-26144 · cve.blacktree.nl