CVE-2003-0734: Unknown vulnerability in the pam_filter mechanism in pam_ldap before version 162, when LDAP based authenticati

Q: How do I fix CVE-2003-0734?

pam ldap: upgrade to newer than 162. Exact commands for each OS are on this page.

Q: Is CVE-2003-0734 being exploited?

CVE-2003-0734 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-2003-0734 affect?

CVE-2003-0734 affects pam ldap. Severity is high (CVSS 10.0). Unknown vulnerability in the pam_filter mechanism in pam_ldap before version 162, when LDAP based authentication is being used, allows users to bypass host-based access restrictions and log onto the system.

Q: How urgent is CVE-2003-0734?

Priority 56/100. Critical severity

This month

HIGH 10.0UPGRADE

CVE-2003-0734 is a high-severity flaw (CVSS 10.0) affecting pam ldap. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Unknown vulnerability in the pam_filter mechanism in pam_ldap before version 162, when LDAP based authentication is being used, allows users to bypass host-based access restrictions and log onto the system.

Why this priority

Critical severity

A fixed release or distro patch exists.

Risk facts

CVSS score	10.0 (High)
EPSS exploit chance	2.3% (top 17%)
CISA exploited list	No
Published	2003-10-20
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: padl software

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

Am I affected?

Timeline

2003-10-20 04:00 UTCPublished CVE record published
2026-06-16 22:02 UTCUpdated Record last modified

padl software pam ldap UPGRADE

Affected: <= 162

Fixed in: newer than 162

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy pam-ldap || rpm -q pam-ldap || pam-ldap --version

2. UPGRADE to newer than 162 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade pam-ldap

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade pam-ldap

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-2003-0734?

pam ldap: upgrade to newer than 162. Exact commands for each OS are on this page.

Is CVE-2003-0734 being exploited?

CVE-2003-0734 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-2003-0734 affect?

CVE-2003-0734 affects pam ldap. Severity is high (CVSS 10.0). Unknown vulnerability in the pam_filter mechanism in pam_ldap before version 162, when LDAP based authentication is being used, allows users to bypass host-based access restrictions and log onto the system.

How urgent is CVE-2003-0734?

Priority 56/100. Critical severity

Related CVEs

CVE-2005-2069 MEDIUM 5.0 MITIGATE MITIGATE pam_ldap and nss_ldap, when used with OpenLDAP and connecting to a slave using TLS, does not use TLS for the s
CVE-2002-0735 HIGH 7.5 DOWNGRADE DOWNGRADE Format string vulnerability in the logging() function in C-Note Squid LDAP authentication module (squid_auth_L
CVE-2002-0374 HIGH 7.5 UPGRADE Format string vulnerability in the logging function for the pam_ldap PAM LDAP module before version 144 allows

References

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