CVE-2012-5468: Heap-based buffer overflow in iconvert.c in the bogolexer component in Bogofilter before 1.2.3 allows remote a

Q: How do I fix CVE-2012-5468?

bogofilter: upgrade to newer than 1.2.2. Exact commands for each OS are on this page.

Q: Is CVE-2012-5468 being exploited?

CVE-2012-5468 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-2012-5468 affect?

CVE-2012-5468 affects bogofilter. Severity is high (CVSS 7.5). Heap-based buffer overflow in iconvert.c in the bogolexer component in Bogofilter before 1.2.3 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via an email containing a base64 string that is

Q: How urgent is CVE-2012-5468?

Priority 55/100. High severity; EPSS top 6%: very likely to be exploited; Public exploit reference

This month

HIGH 7.5UPGRADE

CVE-2012-5468 is a high-severity flaw (CVSS 7.5) affecting bogofilter. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Heap-based buffer overflow in iconvert.c in the bogolexer component in Bogofilter before 1.2.3 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via an email containing a base64 string that is decoded to incomplete multibyte characters.

Why this priority

High severity
EPSS top 6%: very likely to be exploited
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
EPSS exploit chance	6.3% (top 6%)
CISA exploited list	No
Weakness	CWE-119
Published	2012-12-18
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: bogofilter project

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

Am I affected?

Timeline

2012-12-18 01:55 UTCPublished CVE record published
2026-06-16 23:46 UTCUpdated Record last modified

bogofilter project bogofilter UPGRADE

Affected: <= 1.2.2 · 1.0.0 · 1.0.1 · 1.0.2 · 1.0.3 · 1.1.0 · 1.1.1 · 1.1.2

Fixed in: newer than 1.2.2

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy bogofilter || rpm -q bogofilter || bogofilter --version

2. UPGRADE to newer than 1.2.2 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade bogofilter

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade bogofilter

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-2012-5468?

bogofilter: upgrade to newer than 1.2.2. Exact commands for each OS are on this page.

Is CVE-2012-5468 being exploited?

CVE-2012-5468 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-2012-5468 affect?

CVE-2012-5468 affects bogofilter. Severity is high (CVSS 7.5). Heap-based buffer overflow in iconvert.c in the bogolexer component in Bogofilter before 1.2.3 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via an email containing a base64 string that is

How urgent is CVE-2012-5468?

Priority 55/100. High severity; EPSS top 6%: very likely to be exploited; Public exploit reference

References

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