CVE-2000-1045: nss_ldap earlier than 121, when run with nscd (name service caching daemon), allows remote attackers to cause

Routine

LOW 1.2DOWNGRADE

CVE-2000-1045 is a low-severity flaw (CVSS 1.2) affecting nss ldap. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

nss_ldap earlier than 121, when run with nscd (name service caching daemon), allows remote attackers to cause a denial of service via a flood of LDAP requests.

Why this priority

No elevated risk signals yet

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	1.2 (Low)
EPSS exploit chance	0.6% (top 51%)
CISA exploited list	No
Published	2000-12-11
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

2000-12-11 05:00 UTCPublished CVE record published
2026-06-16 21:53 UTCUpdated Record last modified

padl software nss ldap DOWNGRADE

Affected: build_85 · build_105 · build_113

Fixed in: no fixed release known

Safe to downgrade to: a release before build_85

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before build_85 (Debian / Ubuntu)

apt-cache madison nss-ldap sudo apt install nss-ldap=<VERSION_BEFORE_build_85> sudo apt-mark hold nss-ldap

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list nss-ldap sudo dnf downgrade nss-ldap-<VERSION_BEFORE_build_85> sudo dnf versionlock add nss-ldap

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

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-2000-1045?

nss ldap: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2000-1045 being exploited?

CVE-2000-1045 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-2000-1045 affect?

CVE-2000-1045 affects nss ldap. Severity is low (CVSS 1.2). nss_ldap earlier than 121, when run with nscd (name service caching daemon), allows remote attackers to cause a denial of service via a flood of LDAP requests.

How urgent is CVE-2000-1045?

Priority 16/100. No elevated risk signals yet.

Related CVEs

CVE-2007-5794 MEDIUM 4.3 MITIGATE Race condition in nss_ldap, when used in applications that are linked against the pthread library and fork aft
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-2002-0825 HIGH 7.5 UPGRADE Buffer overflow in the DNS SRV code for nss_ldap before nss_ldap-198 allows remote attackers to cause a denial
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

References

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