CVE-2005-0493: CRLF injection vulnerability in bizmail.cgi in Biz Mail Form before 2.2 allows remote attackers to bypass the

Q: How do I fix CVE-2005-0493?

biz mail form: upgrade to newer than 2.1. Exact commands for each OS are on this page.

Q: Is CVE-2005-0493 being exploited?

CVE-2005-0493 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-2005-0493 affect?

CVE-2005-0493 affects biz mail form. Severity is medium (CVSS 5.0). CRLF injection vulnerability in bizmail.cgi in Biz Mail Form before 2.2 allows remote attackers to bypass the email check and send spam e-mail via CRLF sequences and forged mail headers in the email parameter.

Q: How urgent is CVE-2005-0493?

Priority 36/100. No elevated risk signals yet.

Routine

MEDIUM 5.0UPGRADE

CVE-2005-0493 is a medium-severity flaw (CVSS 5.0) affecting biz mail form. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

CRLF injection vulnerability in bizmail.cgi in Biz Mail Form before 2.2 allows remote attackers to bypass the email check and send spam e-mail via CRLF sequences and forged mail headers in the email parameter.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	5.0 (Medium)
EPSS exploit chance	1.4% (top 27%)
CISA exploited list	No
Published	2005-05-02
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: seth m. knorr

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

Am I affected?

Timeline

2005-05-02 04:00 UTCPublished CVE record published
2026-06-16 22:11 UTCUpdated Record last modified

seth m. knorr biz mail form UPGRADE

Affected: <= 2.1

Fixed in: newer than 2.1

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy biz-mail-form || rpm -q biz-mail-form || biz-mail-form --version

2. UPGRADE to newer than 2.1 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade biz-mail-form

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade biz-mail-form

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-2005-0493?

biz mail form: upgrade to newer than 2.1. Exact commands for each OS are on this page.

Is CVE-2005-0493 being exploited?

CVE-2005-0493 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-2005-0493 affect?

CVE-2005-0493 affects biz mail form. Severity is medium (CVSS 5.0). CRLF injection vulnerability in bizmail.cgi in Biz Mail Form before 2.2 allows remote attackers to bypass the email check and send spam e-mail via CRLF sequences and forged mail headers in the email parameter.

How urgent is CVE-2005-0493?

Priority 36/100. No elevated risk signals yet.

References

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