MediumCVE-2020-26141

    Cisco IP Phone 8861 Firmware 11.0(4)SR2: security vulnerability (CVE-2020-26141)

    Published Sources: OSV, CVE.org

    What is affected, what to do

    An issue was discovered in the ALFA Windows 10 driver 6.1316.1209 for AWUS036H. The Wi-Fi implementation does not verify the Message Integrity Check (authenticity) of fragmented TKIP frames.

    Update Cisco Meraki Gr10 Firmware to version 27.7.1, Cisco Meraki Gr60 Firmware to version 27.7.1, Cisco Meraki Mr20 Firmware to version 27.7.1.

    Affected
    • Alfa Awus036h Firmware eq 6.1316.1209..6.1316.1209
    • Cisco Meraki Gr10 Firmware lt *..27.7.1
    • Cisco Meraki Gr60 Firmware lt *..27.7.1
    • Cisco Meraki Mr20 Firmware lt *..27.7.1
    • Cisco Meraki Mr30h Firmware lt *..27.7.1
    • Cisco Meraki Mr33 Firmware lt *..27.7.1
    • Cisco Meraki Mr36 Firmware lt *..27.7.1
    • Cisco Meraki Mr42 Firmware lt *..27.7.1
    • Cisco Meraki Mr42e Firmware lt *..27.7.1
    • Cisco Meraki Mr44 Firmware lt *..27.7.1
    • Cisco Meraki Mr45 Firmware lt *..27.7.1
    • Cisco Meraki Mr46 Firmware lt *..27.7.1
    • Cisco Meraki Mr46e Firmware lt *..27.7.1
    • Cisco Meraki Mr52 Firmware lt *..27.7.1
    • Cisco Meraki Mr53 Firmware lt *..27.7.1
    • Cisco Meraki Mr53e Firmware lt *..27.7.1
    • Cisco Meraki Mr55 Firmware lt *..27.7.1
    • Cisco Meraki Mr56 Firmware lt *..27.7.1
    • Cisco Meraki Mr70 Firmware lt *..27.7.1
    • Cisco Meraki Mr74 Firmware lt *..27.7.1
    • Cisco Meraki Mr76 Firmware lt *..27.7.1
    • Cisco Meraki Mr84 Firmware lt *..27.7.1
    • Cisco Meraki Mr86 Firmware lt *..27.7.1
    • Cisco Meraki Mr12 Firmware lt *..26.8.3
    • Cisco Meraki Mr18 Firmware lt *..26.8.3
    • Cisco Meraki Mr26 Firmware lt *..26.8.3
    • Cisco Meraki Mr32 Firmware lt *..26.8.3
    • Cisco Meraki Mr34 Firmware lt *..26.8.3
    • Cisco Meraki Mr62 Firmware lt *..26.8.3
    • Cisco Meraki Mr66 Firmware lt *..26.8.3
    • Cisco Meraki Mr72 Firmware lt *..26.8.3
    • Cisco Meraki Mx64w Firmware lt *..17.0
    • Cisco Meraki Mx65w Firmware lt *..17.0
    • Cisco Meraki Mx67w Firmware lt *..17.0
    • Cisco Meraki Mx67cw Firmware lt *..17.0
    • Cisco Meraki Mx68w Firmware lt *..17.0
    • Cisco Meraki Mx68cw Firmware lt *..17.0
    • Cisco Meraki Z3 Firmware lt *..17.0
    • Cisco Meraki Z3c Firmware lt *..17.0
    • Cisco Wireless IP Phone 8821 Firmware 9.3(4)SR3 lt *..11.0\(6\)sr2
    • Cisco IP Phone 6861 Firmware lt *..11.3\(5\)
    • Cisco IP Phone 8861 Firmware 11.0(4)SR2 lt *..11.3\(5\)
    • Cisco IP Phone 8861 Firmware 11.0(4)SR2 lt *..14.1\(1\)
    • Cisco IP Phone 8865 Firmware 9.3(4)SR3 lt *..14.1\(1\)
    • Cisco IP Conference Phone 8832 Firmware 12.5(1) lt *..14.1\(1\)
    • Cisco Webex Room Series Firmware lt *..1.2\(0\)sr1
    • Cisco Webex Desk Series Firmware lt *..1.2\(0\)sr1
    • Cisco Webex Board Series Firmware lt *..10.8.2.5
    • Cisco Webex Wireless Phone 860 Firmware lt *..1.4\(0\)
    • Cisco Webex Wireless Phone 840 Firmware lt *..1.4\(0\)
    Fixed in
    • Cisco Meraki Gr10 Firmware 27.7.1
    • Cisco Meraki Gr60 Firmware 27.7.1
    • Cisco Meraki Mr20 Firmware 27.7.1
    • Cisco Meraki Mr30h Firmware 27.7.1
    • Cisco Meraki Mr33 Firmware 27.7.1
    • Cisco Meraki Mr36 Firmware 27.7.1
    • Cisco Meraki Mr42 Firmware 27.7.1
    • Cisco Meraki Mr42e Firmware 27.7.1
    • Cisco Meraki Mr44 Firmware 27.7.1
    • Cisco Meraki Mr45 Firmware 27.7.1
    • Cisco Meraki Mr46 Firmware 27.7.1
    • Cisco Meraki Mr46e Firmware 27.7.1
    • Cisco Meraki Mr52 Firmware 27.7.1
    • Cisco Meraki Mr53 Firmware 27.7.1
    • Cisco Meraki Mr53e Firmware 27.7.1
    • Cisco Meraki Mr55 Firmware 27.7.1
    • Cisco Meraki Mr56 Firmware 27.7.1
    • Cisco Meraki Mr70 Firmware 27.7.1
    • Cisco Meraki Mr74 Firmware 27.7.1
    • Cisco Meraki Mr76 Firmware 27.7.1
    • Cisco Meraki Mr84 Firmware 27.7.1
    • Cisco Meraki Mr86 Firmware 27.7.1
    • Cisco Meraki Mr12 Firmware 26.8.3
    • Cisco Meraki Mr18 Firmware 26.8.3
    • Cisco Meraki Mr26 Firmware 26.8.3
    • Cisco Meraki Mr32 Firmware 26.8.3
    • Cisco Meraki Mr34 Firmware 26.8.3
    • Cisco Meraki Mr62 Firmware 26.8.3
    • Cisco Meraki Mr66 Firmware 26.8.3
    • Cisco Meraki Mr72 Firmware 26.8.3
    • Cisco Meraki Mx64w Firmware 17.0
    • Cisco Meraki Mx65w Firmware 17.0
    • Cisco Meraki Mx67w Firmware 17.0
    • Cisco Meraki Mx67cw Firmware 17.0
    • Cisco Meraki Mx68w Firmware 17.0
    • Cisco Meraki Mx68cw Firmware 17.0
    • Cisco Meraki Z3 Firmware 17.0
    • Cisco Meraki Z3c Firmware 17.0
    • Cisco Wireless IP Phone 8821 Firmware 9.3(4)SR3 11.0\(6\)sr2
    • Cisco IP Phone 6861 Firmware 11.3\(5\)
    • Cisco IP Phone 8861 Firmware 11.0(4)SR2 11.3\(5\)
    • Cisco IP Phone 8861 Firmware 11.0(4)SR2 14.1\(1\)
    • Cisco IP Phone 8865 Firmware 9.3(4)SR3 14.1\(1\)
    • Cisco IP Conference Phone 8832 Firmware 12.5(1) 14.1\(1\)
    • Cisco Webex Room Series Firmware 1.2\(0\)sr1
    • Cisco Webex Desk Series Firmware 1.2\(0\)sr1
    • Cisco Webex Board Series Firmware 10.8.2.5
    • Cisco Webex Wireless Phone 860 Firmware 1.4\(0\)
    • Cisco Webex Wireless Phone 840 Firmware 1.4\(0\)

    Not sure whether and how you are affected? Ask a question about this vulnerability

    Metrics

    6.5

    Priority

    XIEM Effective CVSS: highest available CVSS rating from NVD and vendor data.

    Source: NVD, CVSS v3

    6.5

    CVSS v3

    Severity Medium on the scale from 0 to 10.

    Source: OSV, CVE.org

    3.1 %

    EPSS score

    Moderate — model estimates 1-10% exploitation likelihood.

    Source: FIRST EPSS, percentile 87.6

    Show all metrics
    Severity
    Medium
    Priority (0–325)

    The priority score is a consolidated metric that condenses several individual signals into a single, action-guiding ranking: technical severity (CVSS), exploitation likelihood (EPSS), known-exploited status (KEV) and the context of the affected asset. The aim is to answer the only truly important question in vulnerability management: what first?

    Read in glossary
    93.96 Methodology
    Exploit maturity

    An exploit is code or a technique that specifically uses a concrete vulnerability to force unintended behaviour — such as executing code or escalating privileges. It is the tool that turns a theoretical flaw into a practical attack.

    Read in glossary
    no public PoC known
    XIEM Effective CVSS

    XIEM® is the tiered managed-security operating model from NEOSEC and a registered trademark of NEOSEC GmbH. It extends classic SIEM — the central collection, normalisation and correlation of security-relevant events — with endpoint forensics, network visibility and deception technology, and consolidates them into three building tiers: Sentry, Orchestrate and Command.

    Read in glossary
    6.5 Methodology
    CVSS v3

    CVSS is the globally established, open standard for assessing the technical severity of a vulnerability on a scale from 0 to 10. It describes how easily a flaw can be exploited and what damage it can cause — but not how likely its actual exploitation is. CVSS and the complementary EPSS deliberately answer different questions.

    Read in glossary
    6.5
    EPSS score

    The EPSS score is the absolute model output for an individual vulnerability: the estimated probability of real-world exploitation within the next 30 days, expressed as a value between 0 and 1 (i.e. 0 % to 100 %). A score of 0.42 means „the model estimates a 42 % chance of real-world exploitation within 30 days“.

    Read in glossary
    3.1 %
    Moderate — model estimates 1-10% exploitation likelihood.
    EPSS percentile

    The EPSS percentile is the relative position of a vulnerability within all EPSS-scored CVEs, expressed as a value between 0 and 1. A percentile of 0.90 means „this CVE has a higher EPSS score than 90 % of all other scored CVEs“. Unlike the EPSS score, it is not a probability — but a positioning within a ranking.

    Read in glossary
    87.6
    Critical — this CVE ranks in the top fifth of all CVEs scored today (rank ≥ 80%).
    KEV status

    The KEV catalogue is a list maintained by the US authority CISA of vulnerabilities for which active exploitation in the wild has been confirmed. It answers not the question „how severe?“ but „is it already being attacked?“ — thereby sharply prioritising patching.

    Read in glossary
    —
    Published

    Detection rules

    No NEOSEC detection rule is available for this vulnerability yet.

    Classification under NIS2 and CRA

    Rule-based classification from exploitation status and severity. It does not replace a case-by-case assessment.

    NIS2

    NIS2 is EU Directive (EU) 2022/2555 to raise the level of cybersecurity across the Union. It substantially broadens obligations compared with the first NIS directive: more sectors, mandatory risk management, staged reporting duties and personal accountability of senior management.

    Read in glossary
    Handle the vulnerability in regular vulnerability handling under Art. 21(2)(e) NIS2.
    CRA

    The CRA is EU Regulation (EU) 2024/2847 setting horizontal cybersecurity requirements for „products with digital elements“ — from industrial controllers and software to connected consumer devices. For the first time manufacturers must ensure security across the entire product lifecycle, handle vulnerabilities and provide security updates.

    Read in glossary
    From 11.12.2027, Annex I Part II CRA requires manufacturers of affected products with digital elements to handle vulnerabilities without delay and provide security updates.
    ISO/IEC 27001

    ISO/IEC 27001 is the internationally leading standard for an information security management system (ISMS). It describes a risk-based, process-oriented framework to systematically plan, implement, review and improve information security.

    Read in glossary
    Control A.8.8, management of technical vulnerabilities: assess relevance to your systems, plan remediation and keep evidence.

    Description

    An issue was discovered in the ALFA Windows 10 driver 6.1316.1209 for AWUS036H. The Wi-Fi implementation does not verify the Message Integrity Check (authenticity) of fragmented TKIP frames. An adversary can abuse this to inject and possibly decrypt packets in WPA or WPA2 networks that support the TKIP data-confidentiality protocol.

    Source: OSV (Open Source Vulnerabilities), NVD (NIST), cvelistv5

    Affected products

    The following versions are affected. Older releases of the same product line are also vulnerable unless stated otherwise.

    Affected products
    Affected versionsFixed in
    androidplatform/vendor/qcom-opensource/wlan/qcacld-3.0
    • SoCVersion
    • SoCVersion:0
    • —
    • SoCVersion:2021-10-05

    Vendors and products

    Affected operating systems

    Affected operating systems
    Othersiemens6gk5721-1fc00-0aa0_firmware—
    Othersiemens6gk5721-1fc00-0ab0_firmware—
    Othersiemens6gk5722-1fc00-0aa0_firmware—
    Othersiemens6gk5722-1fc00-0ab0_firmware—
    Othersiemens6gk5722-1fc00-0ac0_firmware—
    Othersiemens6gk5734-1fx00-0aa0_firmware—
    Othersiemens6gk5734-1fx00-0aa6_firmware—
    Othersiemens6gk5734-1fx00-0ab0_firmware—
    Othersiemens6gk5734-1fx00-0ab6_firmware—
    Othersiemens6gk5738-1gy00-0aa0_firmware—
    Othersiemens6gk5738-1gy00-0ab0_firmware—
    Othersiemens6gk5748-1fc00-0aa0_firmware—
    Othersiemens6gk5748-1fc00-0ab0_firmware—
    Othersiemens6gk5748-1gd00-0aa0_firmware—
    Othersiemens6gk5748-1gd00-0ab0_firmware—
    Othersiemens6gk5761-1fc00-0aa0_firmware—
    Othersiemens6gk5761-1fc00-0ab0_firmware—
    Othersiemens6gk5774-1fx00-0aa0_firmware—
    Othersiemens6gk5774-1fx00-0aa6_firmware—
    Othersiemens6gk5774-1fx00-0ab0_firmware—
    Othersiemens6gk5774-1fx00-0ab6_firmware—
    Othersiemens6gk5774-1fy00-0ta0_firmware—
    Othersiemens6gk5774-1fy00-0tb0_firmware—
    Othersiemens6gk5778-1gy00-0aa0_firmware—

    References & sources

    • source.android.comsecurity/bulletin/2021-10-01advisory
    • source.codeaurora.orgquic/la/platform/vendor/qcom-opensource/wlan/qcacld-3.0/commit/…fix
    • tools.cisco.com20210511 Multiple Vulnerabilities in Frame Aggregation and Fragmentation Implementations of 802.11 Specification Affecting Cisco Products: May 2021Vendor advisory, x_refsource_CISCO, Third-party advisory
    • fragattacks.comx_refsource_MISC, Third-party advisory
    • github.comvanhoefm/fragattacks/blob/master/SUMMARY.mdx_refsource_MISC, Third-party advisory
    • openwall.com[oss-security] 20210511 various 802.11 security issues - fragattacks.comMailing list, x_refsource_MLIST, Mailing list, Third-party advisory
    • Siemens ProductCERTproductcert/pdf/ssa-913875.pdfx_refsource_CONFIRM, Third-party advisory
    • arista.comen/support/advisories-notices/security-advisories/12602-securit…x_refsource_MISC, Third-party advisory
    • Siemens ProductCERTproductcert/html/ssa-913875.html
    • Siemens ProductCERTproductcert/html/ssa-019200.html
    Embed badge

    Show the severity and KEV status of this vulnerability on your site – with a link back here. The image is updated hourly.

    Badge preview for CVE-2020-26141
    <a href="https://intel.neosec.eu/en/cve/CVE-2020-26141"><img src="https://intel.neosec.eu/badge/cve/CVE-2020-26141.svg?lang=en" alt="CVE-2020-26141 – NEOSEC Intel" height="20"></a>