BugZero | Cisco BugID CSCwe50376 - Controller crashed on wcmgrd process due to memory...

Cisco - Defect ID: CSCwe50376

Controller crashed on wcmgrd process due to memory corruption

Cisco - Defect ID: CSCwe50376

Controller crashed on wcmgrd process due to memory corruption

Last updated on February 22nd, 2026

BugZero Risk Score
7.7 High

Overall: 7.7

Severity: 8.2

Lifecycle: 9.1

Popularity: 3.7

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Bug Details

Description

Symptom

Controller crashed on wcmgrd process due to memory corruption

Conditions

System crashed on wncmgrd process, when trigger the start while APs were performing neighbour and also intentionally flapping few APs. Image: 17.12.1: BLD_POLARIS_DEV_LATEST_20230227_153747

Workaround

NA

Further Problem Description

Controller crashed on wcmgrd process due to memory corruption Applicable to 17.12.1 only

Change history

2026-01-11 Added: 17.12.1

Relevant Products

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Affected versions:17.12.1

Fixed versions: 17.1.1, 17.1.1a, 17.1.1s, 17.1.1t, 17.1.2, 17.1.3, 17.12.02a, 17.12.1, 17.12.1a, 17.12.1w, 17.12.1x, 17.12.1y, 17.12.1z, 17.12.1z1, 17.12.1z2, 17.12.1z3, 17.12.1z4, 17.12.1z5, 17.12.1z6, 17.12.2, 17.12.2a, 17.12.3, 17.12.3a, 17.12.4, 17.12.4a, 17.12.4b, 17.12.5, 17.12.5a, 17.12.5b, 17.12.5c, 17.12.5d, 17.12.6, 17.12.6a, 17.12.6b, 17.13.1, 17.13.1a, 17.14.1, 17.14.1a, 17.15.1, 17.15.1a, 17.15.1b, 17.15.1w, 17.15.1x, 17.15.1y, 17.15.1z, 17.15.2, 17.15.2a, 17.15.2b, 17.15.2c, 17.15.3, 17.15.3a, 17.15.3b, 17.15.4, 17.15.4a, 17.15.4b, 17.15.4c, 17.15.4d, 17.15.4s1, 17.15.5, 17.16.1, 17.16.1a, 17.17.1, 17.18.1, 17.18.1a, 17.18.1w, 17.18.1x, 17.18.2

Relevant Products

Click on a version to see all relevant bugs

Affected versions:17.12.1

Fixed versions: 17.1.1, 17.1.1a, 17.1.1s, 17.1.1t, 17.1.2, 17.1.3, 17.12.02a, 17.12.1, 17.12.1a, 17.12.1w, 17.12.1x, 17.12.1y, 17.12.1z, 17.12.1z1, 17.12.1z2, 17.12.1z3, 17.12.1z4, 17.12.1z5, 17.12.1z6, 17.12.2, 17.12.2a, 17.12.3, 17.12.3a, 17.12.4, 17.12.4a, 17.12.4b, 17.12.5, 17.12.5a, 17.12.5b, 17.12.5c, 17.12.5d, 17.12.6, 17.12.6a, 17.12.6b, 17.13.1, 17.13.1a, 17.14.1, 17.14.1a, 17.15.1, 17.15.1a, 17.15.1b, 17.15.1w, 17.15.1x, 17.15.1y, 17.15.1z, 17.15.2, 17.15.2a, 17.15.2b, 17.15.2c, 17.15.3, 17.15.3a, 17.15.3b, 17.15.4, 17.15.4a, 17.15.4b, 17.15.4c, 17.15.4d, 17.15.4s1, 17.15.5, 17.16.1, 17.16.1a, 17.17.1, 17.18.1, 17.18.1a, 17.18.1w, 17.18.1x, 17.18.2

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Cisco - Defect ID: CSCwe50376

Controller crashed on wcmgrd process due to memory corruption

Cisco - Defect ID: CSCwe50376

Controller crashed on wcmgrd process due to memory corruption

Last updated on February 22nd, 2026

BugZero Risk Score7.7 High

Bug Details

Symptom

Conditions

Workaround

Further Problem Description

Top Cisco Defects

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BugZero Risk Score
7.7 High