What’s Vulnerable › Vulnerabilities

CVE-2001-0867

• Severity: high (CVSS 7.5 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2001-12-06 · updated 2026-06-16

Description

Cisco 12000 with IOS 12.0 and line cards based on Engine 2 does not properly filter does not properly filter packet fragments even when the "fragment" keyword is used in an ACL, which allows remote attackers to bypass the intended access controls.

Affected products

• Cisco 12000 Router: all versions

References

• http://www.ciac.org/ciac/bulletins/m-018.shtml
• http://www.cisco.com/warp/public/707/GSR-ACL-pub.shtml
• http://www.osvdb.org/1989
• http://www.securityfocus.com/bid/3538
• https://exchange.xforce.ibmcloud.com/vulnerabilities/7555
• http://www.ciac.org/ciac/bulletins/m-018.shtml
• http://www.cisco.com/warp/public/707/GSR-ACL-pub.shtml
• http://www.osvdb.org/1989
• http://www.securityfocus.com/bid/3538
• https://exchange.xforce.ibmcloud.com/vulnerabilities/7555

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