BugZero | F5 BugID 808277 - Root's crontab file may become empty

F5 - Defect ID: 808277

Root's crontab file may become empty

F5 - Defect ID: 808277

Root's crontab file may become empty

Last updated on July 18th, 2026

BugZero Risk Score
8.5 High

Overall: 8.5

Severity: 9.1

Community: 4.2

Lifecycle: 7.8

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Bug Details

Priority: 2-Critical
Status: Not Verified
Impact Category: TMOS

Description

Symptoms

Under low-disk conditions for the /var/ filesystem, BIG-IP system processes may incorrectly update root's crontab file (/var/spool/cron/root). This results in the file contents being removed; i.e., the file is empty.

Impact

System and user entries in root's crontab file stop executing.

Conditions

Low disk space on the /var filesystem.

Workaround

None.

Fix Information

None

Change history

Links

Original Vendor Announcement

Relevant Products

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Affected versions:12.1.0, 12.1.0 hf1, 12.1.0 hf2, 12.1.1, 12.1.1 hf1, 12.1.1 hf2, 12.1.2, 12.1.2 hf1, 12.1.2 hf2, 12.1.3, 12.1.3.1, 12.1.3.2, 12.1.3.3, 12.1.3.4, 12.1.3.5, 12.1.3.6, 12.1.3.7, 12.1.4, 12.1.4.1, 12.1.5, 12.1.5.1, 12.1.5.2, 12.1.5.3, 12.1.6, 13.0.0, 13.0.0 hf1, 13.0.0 hf2, 13.0.0 hf3, 13.0.1, 13.1.0, 13.1.0.1, 13.1.0.2, 13.1.0.3, 13.1.0.4, 13.1.0.5, 13.1.0.6, 13.1.0.7, 13.1.0.8, 13.1.1, 13.1.1.2, 13.1.1.3, 13.1.1.4, 13.1.1.5, 13.1.3, 13.1.3.1, 13.1.3.2, 13.1.3.3, 13.1.3.4, 13.1.3.5, 13.1.3.6, 13.1.4, 13.1.4.1, 13.1.5, 13.1.5.1, 14.0.0, 14.0.0.1, 14.0.0.2, 14.0.0.3, 14.0.0.4, 14.0.0.5, 14.0.1, 14.0.1.1, 14.1.0, 14.1.0.1, 14.1.0.2, 14.1.0.3, 14.1.0.5, 14.1.0.6, 14.1.2, 14.1.2.1, 14.1.2.2, 14.1.2.3, 14.1.2.4, 14.1.2.5, 14.1.2.6, 14.1.2.7, 14.1.2.8, 14.1.3, 14.1.3.1, 14.1.4, 14.1.4.1, 14.1.4.2, 14.1.4.3, 14.1.4.4, 14.1.4.5, 14.1.4.6, 14.1.5, 14.1.5.1, 14.1.5.2, 14.1.5.3, 14.1.5.4, 14.1.5.6, 15.0.0, 15.0.1, 15.0.1.1, 15.0.1.2, 15.0.1.3, 15.0.1.4, 15.1.0, 15.1.0.1, 15.1.0.2, 15.1.0.3, 15.1.0.4, 15.1.0.5, 15.1.1, 15.1.2, 15.1.2.1, 15.1.3, 15.1.3.1, 15.1.4, 15.1.4.1, 15.1.5, 15.1.5.1, 15.1.6, 15.1.6.1, 15.1.7, 15.1.8, 15.1.8.1, 15.1.8.2, 15.1.9, 15.1.9.1

Fixed versions: 16.0.0, 15.1.10

Relevant Products

Click on a version to see all relevant bugs

Fixed versions: 16.0.0, 15.1.10

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F5 - Defect ID: 808277

Root's crontab file may become empty

F5 - Defect ID: 808277

Root's crontab file may become empty

Last updated on July 18th, 2026

BugZero Risk Score8.5 High

Bug Details

Symptoms

Impact

Conditions

Workaround

Fix Information

Links

Top F5 Defects

Ready to prevent the next vendor outage?

F5 - Defect ID: 808277

Root's crontab file may become empty

F5 - Defect ID: 808277

Root's crontab file may become empty

Last updated on July 18th, 2026

BugZero Risk Score8.5 High

Bug Details

Symptoms

Impact

Conditions

Workaround

Fix Information

Links

Top F5 Defects

Ready to prevent the next vendor outage?

BugZero Risk Score
8.5 High

BugZero Risk Score
8.5 High