Wireless firmware versions MR 27.7 changelog Important note When configured for this version, the MR12, MR16, MR18, MR24, MR26, MR32, MR34, MR62, MR66, and MR72 will run MR 26.8.2 which explicitly includes the pertinent security fixes noted below. Security fixes CVE-2020-11022 - https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-11022 (MR12/MR16/MR18/MR24/MR26/MR32/MR34/MR62/MR66/MR72) CVE-2020-11023 - https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-11023 (MR12/MR16/MR18/MR24/MR26/MR32/MR34/MR62/MR66/MR72) CVE-2020-24588 - https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-wifi-faf-22epcEWu (Wi-Fi 5 MRs/Wi-Fi 6 MRs) CVE-2020-24587 - https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-wifi-faf-22epcEWu (Wi-Fi 5 MRs/Wi-Fi 6 MRs) CVE-2020-24586 - https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-wifi-faf-22epcEWu (Wi-Fi 5 MRs/Wi-Fi 6 MRs) CVE-2020-26145 - https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-wifi-faf-22epcEWu (Wi-Fi 5 MRs/Wi-Fi 6 MRs) CVE-2020-26144 - https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-wifi-faf-22epcEWu (Wi-Fi 5 MRs/Wi-Fi 6 MRs) CVE-2020-26140 - https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-wifi-faf-22epcEWu (Wi-Fi 5 MRs/Wi-Fi 6 MRs) CVE-2020-26143 - https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-wifi-faf-22epcEWu (Wi-Fi 5 MRs/Wi-Fi 6 MRs) CVE-2020-26139 - https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-wifi-faf-22epcEWu (Wi-Fi 5 MRs/Wi-Fi 6 MRs) CVE-2020-26146 - https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-wifi-faf-22epcEWu (Wi-Fi 5 MRs/Wi-Fi 6 MRs) CVE-2020-26147 - https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-wifi-faf-22epcEWu (Wi-Fi 5 MRs/Wi-Fi 6 MRs) CVE-2020-26142 - https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-wifi-faf-22epcEWu (Wi-Fi 5 MRs/Wi-Fi 6 MRs) CVE-2020-26143 - https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-wifi-faf-22epcEWu (Wi-Fi 5 MRs/Wi-Fi 6 MRs) CVE-2020-25684 - https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-dnsmasq-dns-2021-c5mrdf3g (Wi-Fi 5 MRs, Wi-Fi 6 MRs, MR12/MR16/MR18/MR24/MR26/MR32/MR34/MR62/MR66/MR72) CVE-2020-25685 - https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-dnsmasq-dns-2021-c5mrdf3g (Wi-Fi 5 MRs, Wi-Fi 6 MRs, MR12/MR16/MR18/MR24/MR26/MR32/MR34/MR62/MR66/MR72) CVE-2020-25686 - https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-dnsmasq-dns-2021-c5mrdf3g (Wi-Fi 5 MRs, Wi-Fi 6 MRs, MR12/MR16/MR18/MR24/MR26/MR32/MR34/MR62/MR66/MR72) Bug fixes General stability improvements Scanning radio may become stuck on a single frequency in some regulatory domains (Wi-Fi 5 MRs) MR may not forward buffered frames upon receipt of CTS from STA if the CTS did not follow the preceding RTS within a given time window (Wi-Fi 6 MRs) MR does not automatically detect Smart Antennas (MR42E) MR may experience frequent Ethernet carrier changes (MR36) MR was not applying the appropriate QoS DSCP tags to some egress packets (Wi-Fi 6 MRs) MR was generating SNMP ifOutErrors under normal 802.11 traffic scenarios (Wi-Fi 5 MRs/Wi-Fi 6 MRs) Known issues Sporadic packet loss & instability on Layer 3 roaming & Teleworker VPN SSID's (Wi-Fi 5 MRs/Wi-Fi 6 MRs) UNII-2e channels not available for indoor APs in Israel IL regulatory domain (Wi-Fi 5 MRs/Wi-Fi 6 MRs)
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