What’s Vulnerable › Vulnerabilities

CVE-2003-1398

• Severity: critical (CVSS 9.3 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.8% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2003-12-31 · updated 2026-06-16
• Weakness: CWE-200

Description

Cisco IOS 12.0 through 12.2, when IP routing is disabled, accepts false ICMP redirect messages, which allows remote attackers to cause a denial of service (network routing modification).

Affected products

• Cisco IOS: 12.0, 12.0s, 12.0st, 12.0t, 12.1, 12.1e (+6)

References

• http://archives.neohapsis.com/archives/bugtraq/2003-02/0131.html
• http://securitytracker.com/id?1006075
• http://www.securityfocus.com/bid/6823
• https://exchange.xforce.ibmcloud.com/vulnerabilities/11306
• http://archives.neohapsis.com/archives/bugtraq/2003-02/0131.html
• http://securitytracker.com/id?1006075
• http://www.securityfocus.com/bid/6823
• https://exchange.xforce.ibmcloud.com/vulnerabilities/11306

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