CVE-2015-4321

no score yetEPSS 1.7%

cisco adaptive security appliance software: no CVSS score yet. EPSS 1.7% chance of exploitation in the next 30 days.

The Unicast Reverse Path Forwarding (uRPF) implementation in Cisco Adaptive Security Appliance (ASA) Software 9.3(1.50), 9.3(2.100), 9.3(3), and 9.4(1) mishandles cases where an IP address belongs to an internal interface but is also in the ASA routing table, which allows remote attackers to bypass uRPF validation via spoofed packets, aka Bug ID CSCuv60724.

EPSS: 1.7% chance of exploitation in the next 30 days; higher than 77% of CVEs (scores of 2026-10-31)
CWE: CWE-20
Published: 2015-08-20
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

cisco:adaptive_security_appliance_software

References

http://tools.cisco.com/security/center/viewAlert.x?alertId=40440
http://www.securitytracker.com/id/1033265
http://tools.cisco.com/security/center/viewAlert.x?alertId=40440
http://www.securitytracker.com/id/1033265

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