All vulnerabilities
CVE-2008-4128

Cisco IOS Cross-Site Request Forgery Vulnerability

Cisco IOSOperating systems
Open in ThreatlineRecord JSON
CVSS
8.1High
ExploitationExploited in the wildAdded to KEV 13 Jul 2026CISA KEV
Exploit odds (EPSS)33.9%Chance of exploitation activity in the next 30 days, higher than 98% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version. Check the vendor advisory below
Federal deadline16 Jul 2026Remediation due date for US federal agenciesCISA KEV
CISA required actionApply 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. CISA KEV
Patching is not enoughCISA requires federal agencies to look for signs of compromise on affected systems, not only patch (forensic triage under BOD 26-04). Treat exposed systems as possibly compromised. CISA guidance

What fixes it

No source in this snapshot names a fixed version. The vendor advisories under References are the place to check.

Timeline

  1. 17 Sep 2008Exploit code publicExploit-DB
  2. 18 Sep 2008, 20:00 UTCPublishedCVE List
  3. 13 Jul 2026Added to CISA KEVCISA KEV

Public exploit code and templates 1

  • Remote exploitCisco Router - HTTP Administration Cross-Site Request Forgery / Command Execution (1) 17 Sep 2008Exploit-DB

Listed so defenders can prioritize. Threatline links to the source and does not host exploit code.

Description

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.

Text from CVE List

Affected versions 1

  • n/aaffected: n/aCVE List

References 7