CVE-2012-6110: bcron-exec in bcron before 0.10 does not close file descriptors associated with temporary files when running a

Q: How do I fix CVE-2012-6110?

bcron exec: upgrade to newer than 0.09. Exact commands for each OS are on this page.

Q: Is CVE-2012-6110 being exploited?

CVE-2012-6110 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2012-6110 affect?

CVE-2012-6110 affects bcron exec. Severity is low (CVSS 2.1). bcron-exec in bcron before 0.10 does not close file descriptors associated with temporary files when running a cron job, which allows local users to modify job files and send spam messages by accessing an open file descriptor.

Q: How urgent is CVE-2012-6110?

Priority 22/100. Public exploit reference

Routine

LOW 2.1UPGRADE

CVE-2012-6110 is a low-severity flaw (CVSS 2.1) affecting bcron exec. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

bcron-exec in bcron before 0.10 does not close file descriptors associated with temporary files when running a cron job, which allows local users to modify job files and send spam messages by accessing an open file descriptor.

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	2.1 (Low)
EPSS exploit chance	0.4% (top 63%)
CISA exploited list	No
Weakness	CWE-264
Published	2014-09-29
Last modified	2026-06-16

Publisher (CNA): Red Hat, Inc. · Vendor: bcron project

Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2014-09-29 22:55 UTCPublished CVE record published
2026-06-16 23:47 UTCUpdated Record last modified

bcron project bcron exec UPGRADE

Affected: <= 0.09 · 0.04 · 0.05 · 0.06 · 0.07 · 0.08

Fixed in: newer than 0.09

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy bcron-exec || rpm -q bcron-exec || bcron-exec --version

2. UPGRADE to newer than 0.09 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade bcron-exec

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade bcron-exec

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2012-6110?

bcron exec: upgrade to newer than 0.09. Exact commands for each OS are on this page.

Is CVE-2012-6110 being exploited?

CVE-2012-6110 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2012-6110 affect?

CVE-2012-6110 affects bcron exec. Severity is low (CVSS 2.1). bcron-exec in bcron before 0.10 does not close file descriptors associated with temporary files when running a cron job, which allows local users to modify job files and send spam messages by accessing an open file descriptor.

How urgent is CVE-2012-6110?

Priority 22/100. Public exploit reference

References

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