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Cisco Bug: CSCur09595 - Standby firewall may incorrectly program internal routing table, 'to-the-box' traffic may be dropped

Last Modified

Nov 27, 2020

Products (2)

  • Cisco Adaptive Security Appliance (ASA) Software
  • Cisco Adaptive Security Appliance (ASA) Software

Known Affected Releases

8.4(6) 8.5(1) 9.1(4) 9.1(5) 9.2(2.7)

Description (partial)

In an Active/Standby firewall pair, the standby firewall may have incorrectly programmed its internal routing table. This result in traffic destined to the Standby ASA, upon being made Active, being dropped.

This is seen in Active/Standby firewall pairs
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