CVE-2002-0511 — The default configuration of Name Service Cache Daemon (nscd) in Caldera OpenLinux 3.1 and 3.1.1 uses cached PTR records instead of consulting the authoritative DNS server for the A record, which could make it easier for remote attackers to bypass applications that restrict access based on host names

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HIGH

The default configuration of Name Service Cache Daemon (nscd) in Caldera OpenLinux 3.1 and 3.1.1 uses cached PTR records instead of consulting the authoritative DNS server for the A record, which could make it easier for remote attackers to bypass applications that restrict access based on host names

Published Apr 2, 2003

7.5

HIGH

CVSS 2.0

EPSS 1.58%

Description

The default configuration of Name Service Cache Daemon (nscd) in Caldera OpenLinux 3.1 and 3.1.1 uses cached PTR records instead of consulting the authoritative DNS server for the A record, which could make it easier for remote attackers to bypass applications that restrict access based on host names.

Affected products

Remediation

No remediation recorded yet.

Metrics

1.58% 0.01584

Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.

EPSS probability 0.01584

Score over time

2022–2026

EPSS v2
EPSS v3
EPSS v4
EPSS v5

Percentile over time

EPSS v2
EPSS v3
EPSS v4
EPSS v5

Table of values (10 key points)

Flat stretches are collapsed; showing up to 120 newest points.

Date	Score	Percentile	Model
Oct 1, 2026	1.58% (0.01584)	74.66th	v5 (v2026.06.15)
Jun 15, 2026	1.58% (0.01584)	72.29th	v5 (v2026.06.15)
Mar 17, 2025	0.35% (0.00351)	55.33th	v4 (v2025.03.14)
Dec 12, 2024	0.60% (0.00605)	79.26th	v3 (v2023.03.01)
Feb 8, 2024	0.60% (0.00605)	77.88th	v3 (v2023.03.01)
Mar 7, 2023	0.60% (0.00605)	75.23th	v3 (v2023.03.01)
Mar 6, 2023	1.14% (0.01136)	59.45th	v2 (v2022.01.01)
Oct 18, 2022	1.14% (0.01136)	58.28th	v2 (v2022.01.01)
Apr 1, 2022	1.14% (0.01136)	56.27th	v2 (v2022.01.01)
Feb 4, 2022	1.14% (0.01136)	34.23th	v2 (v2022.01.01)

Weaknesses (0)

No CWE recorded.

References (3)

http://www.calderasystems.com/support/security/advisories/CSSA-2002-013.0.txt
vendor-advisoryx_refsource_CALDERA
http://www.iss.net/security_center/static/8745.php
vdb-entryx_refsource_XFVendor Advisory
http://www.securityfocus.com/bid/4399
vdb-entryx_refsource_BIDPatchVendor Advisory

Link	Providers	Tags
http://www.calderasystems.com/support/security/advisories/CSSA-2002-013.0.txt		vendor-advisoryx_refsource_CALDERA
http://www.iss.net/security_center/static/8745.php		vdb-entryx_refsource_XFVendor Advisory
http://www.securityfocus.com/bid/4399		vdb-entryx_refsource_BIDPatchVendor Advisory

Change history (0)

No recorded changes yet.

Sources

CVE.org / MITRE

Status PUBLISHED

Assigner mitre

Published Apr 2, 2003

Updated Aug 8, 2024

Reserved Jun 7, 2002

Link CVE-2002-0511

CISA Vulnrichment

Updated n/a

NVD

Status Modified

Modified Jun 16, 2026

Link CVE-2002-0511

Red Hat

Severity n/a

Public date n/a

Links CVE-2002-0511