CVE-2008-4128

LLM-synthesized narrative grounded in this CVE's description and references.

• Cisco Systems, Inc./Cisco iOSllm-fuzzy2 versions

  12.4+ 1 more

  • (no CPE)range: 12.4
  • cpe:2.3:o:cisco:ios:12.4:*:*:*:*:*:*:*
• Cisco Systems, Inc./881 Integrated Services Routerllm-fuzzy

  Range: 12.4

• www.securityfocus.com/bid/31218nvdBroken LinkExploitThird Party AdvisoryVDB Entry
• www.exploit-db.com/exploits/6476nvdExploitThird Party AdvisoryVDB Entry
• www.exploit-db.com/exploits/6477nvdExploitThird Party AdvisoryVDB Entry
• exchange.xforce.ibmcloud.com/vulnerabilities/45226nvdThird Party AdvisoryVDB Entry
• media.defense.gov/2026/Jul/09/2003959498/-1/-1/1/CSA_IMPROVE_ROUTER_HYGIENE.PDFnvdThird Party AdvisoryUS Government Resource
• jbrownsec.blogspot.com/2008/09/cisco-0day-released.htmlnvdBroken Link
• www.cisa.gov/known-exploited-vulnerabilities-catalognvdUS Government Resource
• www.cisco.com/c/en/us/obsolete/ios-nx-os-software/cisco-ios-software-releases-12-4-mainline.htmlnvdProduct

• CISA Warns of Decades-Old Cisco IOS Vulnerability Actively Exploited in Attacks
  Cyber Security News · Jul 14, 2026
• US, Allies Warn of Russian Cyberattacks Targeting Critical Infrastructure Routers
  SecurityWeek · Jul 14, 2026
• U.S. Sanctions First VPN Service and Malware Cryptor Seller Over Ransomware Support
  The Hacker News · Jul 14, 2026
• Officials once again warn defenders that Russian hackers are targeting network devices
  CyberScoop · Jul 13, 2026
• Cisco: CVE-2008-4128 Added to CISA KEV Under Active Exploitation
  Vypr Intelligence · Jul 13, 2026
• CISA Adds One Known Exploited Vulnerability to Catalog
  CISA Alerts
• Improve Router Hygiene to Protect Against Russian State-Sponsored Targeting
  CISA Alerts