BugZero | Cisco BugID CSCut17816 - On ISM, OCE reinject ha mem leak seen with v6 traf...

Cisco - Defect ID: CSCut17816

On ISM, OCE reinject ha mem leak seen with v6 traffic through tunnel

Cisco - Defect ID: CSCut17816

On ISM, OCE reinject ha mem leak seen with v6 traffic through tunnel

Last updated on February 24th, 2026

BugZero Risk Score
7.8 High

Overall: 7.8

Severity: 8.2

Lifecycle: 9.1

Popularity: 4.6

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Bug Details

Description

Symptom

Memory leak seen on 3900 with iSM

Conditions

High rate, small size ipv6 traffic through crypto map tunnel

Workaround

disable ip cef #no ip cef

Further Problem Description

Change history

2026-02-24 Removed: 15.5(3)M

2019-09-17 Added: 15.5(3)M

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Cisco - Defect ID: CSCut17816

On ISM, OCE reinject ha mem leak seen with v6 traffic through tunnel

Cisco - Defect ID: CSCut17816

On ISM, OCE reinject ha mem leak seen with v6 traffic through tunnel

Last updated on February 24th, 2026

BugZero Risk Score7.8 High

Bug Details

Symptom

Conditions

Workaround

Further Problem Description

Links

Top Cisco Defects

Ready to prevent the next vendor outage?

BugZero Risk Score
7.8 High