High Threat Security Alert (A26-02-33): Multiple Vulnerabilities in Cisco Products


 

Published on: 26 February 2026

Description:

Cisco has released security updates to address multiple vulnerabilities in several Cisco devices and software. For information about the vulnerabilities and the attacking vectors, please refer to the corresponding security advisories at the vendor's website.

Reports indicated that multiple elevation of privilege vulnerabilities (CVE-2022-20775 and CVE-2026-20127) in Cisco Products for Cisco SD-WAN Software, Cisco Catalyst SD-WAN Controller and Cisco Catalyst SD-WAN Manager are being exploited in the wild. Cisco has released security updates to address the issues. System administrators are advised to take immediate action to patch your affected systems to mitigate the elevated risk of cyber attacks.

 

Affected Systems:

  • Cisco Application Policy Infrastructure Controller
  • Cisco NX-OS Software
  • Cisco Catalyst SD-WAN Controller
  • Cisco Catalyst SD-WAN Manager
  • Cisco FXOS Software
  • Cisco UCS Manager Software
  • Cisco Nexus 3600 and 9500-R Series Switching Platforms
  • Cisco Nexus 9000 Series Fabric Switches in ACI mode
  • Cisco SD-WAN Software

For detailed information of the affected products, please refer to the section ”Affected Products” of corresponding security advisory at vendor's website.

 

Impact:

Depending on the vulnerabilities exploited, a successful attack could lead to remote code execution, denial of service, elevation of privilege, information disclosure, security restriction bypass or tampering on an affected system.

 

Recommendation:

Software updates for affected systems are now available. System administrators of affected systems should follow the recommendations provided by the product vendor and take immediate actions to mitigate the risk. For detailed information of the available patches, please refer to the section "Fixed Software" of corresponding security advisory at vendor's website.

System administrators should contact their product support vendors for the fixes and assistance.

 

More Information:

  • https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-apic-dos-rNus8EFw
  • https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-n3kn9k_aci_lldp_dos-NdgRrrA3
  • https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nxos-cpdos-qLsv6pFD
  • https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nxos-dsnmp-cNN39Uh
  • https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nxos-ether-dos-Kv8YNWZ4
  • https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sd-wan-priv-E6e8tEdF
  • https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdwan-authbp-qwCX8D4v
  • https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdwan-rpa-EHchtZk
  • https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ucsciv-wGYtC78q
  • https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ucsfxosxss-7skVE8Zv
  • https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ucsm-afwae-mOgUfyLn
  • https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ucsm-cmdinj-GvxLPeSB
  • https://www.hkcert.org/security-bulletin/cisco-products-multiple-vulnerabilities_20260226
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-20775
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-20818
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-20010
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-20033
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-20036 (to CVE-2026-20037)
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-20048
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-20051
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-20091
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-20099
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-20107
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-20122
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-20126 (to CVE-2026-20129)
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-20133


Tag: Cisco , Cisco APIC , Cisco NX-OS , Cisco Catalyst , Cisco FXOS , Cisco UCS Manager , Cisco Nexus Platform Switches , Cisco Nexus Switch , Cisco SD-WAN
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