Cisco IOS Cross-Site Request Forgery Vulnerability

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• NewsExploited · CISA KEVCisco · IOS

  Cisco IOS Cross-Site Request Forgery Vulnerability

  CVE-2008-4128

  Cisco IOS 12.4 contains multiple cross-site forgery vulnerabilities that allows remote attackers to execute arbitrary commands via (1) a certain "show privilege" command to the /level/15/exec/- URI, and (2) a certain "alias exec" command to the /level/15/exec/-/configure/http URI.

  CISA's required action · due 16 Jul 2026 for U.S. federal civilian agencies

  Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

  Cited by CISA: cisco.com · nvd.nist.gov

  Added to KEV 13 Jul 2026 · Source checked 4 Nov 2026, 16:30 UTC · CISA KEV entry

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