CVE-2011-0438

NONECVSS 0.0Trending — 3 sources updated this week

0.0

nslcd/pam.c in the nss-pam-ldapd 0.8.0 PAM module returns a success code when a user is not found in LDAP, which allows remote attackers to bypass authentication.

CVSS v3: —
EG Score: 0.0(none)
EPSS: 63.6%
KEV: Not listed

Published

March 15, 2011

Last Modified

April 29, 2026

References (12)

cve@mitrehttp://arthurdejong.org/nss-pam-ldapd/news.html#20110309
cve@mitrehttp://lists.arthurdejong.org/nss-pam-ldapd-announce/2011/attachments/txtVf3rHgt8qQ.txt
cve@mitrehttp://lists.arthurdejong.org/nss-pam-ldapd-announce/2011/msg00000.html
cve@mitrehttp://securityreason.com/securityalert/8132
cve@mitrehttp://www.securityfocus.com/bid/46819
cve@mitrehttps://exchange.xforce.ibmcloud.com/vulnerabilities/66028
af854a3a-2127-422b-91ae-364da2661108http://arthurdejong.org/nss-pam-ldapd/news.html#20110309
af854a3a-2127-422b-91ae-364da2661108http://lists.arthurdejong.org/nss-pam-ldapd-announce/2011/attachments/txtVf3rHgt8qQ.txt
af854a3a-2127-422b-91ae-364da2661108http://lists.arthurdejong.org/nss-pam-ldapd-announce/2011/msg00000.html
af854a3a-2127-422b-91ae-364da2661108http://securityreason.com/securityalert/8132
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/46819
af854a3a-2127-422b-91ae-364da2661108https://exchange.xforce.ibmcloud.com/vulnerabilities/66028

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-287Improper Authentication

Data Freshness Timeline

(refreshed 15× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-02 20:10 UTCepss_batch
2026-06-02 20:10 UTCepss_batch
2026-06-01 13:49 UTCepss_batch
2026-06-01 13:49 UTCepss_batch
2026-05-31 22:28 UTCepss_batch
2026-05-31 22:28 UTCepss_batch
2026-05-31 00:14 UTCepss_batch
2026-05-31 00:14 UTCepss_batch
2026-05-29 13:41 UTCepss_batch
2026-05-29 13:40 UTCepss_batch
2026-05-29 08:30 UTCEG score recompute
2026-05-29 08:30 UTCGHSA enrichment
2026-05-28 13:42 UTCepss_batch
2026-05-28 13:42 UTCepss_batch
2026-05-28 13:42 UTCepss_batch
2026-05-27 13:38 UTCepss_batch
2026-05-27 13:38 UTCepss_batch
2026-05-26 13:41 UTCepss_batch
2026-05-26 13:41 UTCepss_batch
2026-05-26 07:16 UTCepss_batch

Frequently asked(4)

What is CVE-2011-0438?

CVE-2011-0438 is a none vulnerability published on March 15, 2011. nslcd/pam.c in the nss-pam-ldapd 0.8.0 PAM module returns a success code when a user is not found in LDAP, which allows remote attackers to bypass authentication.

When was CVE-2011-0438 disclosed?

CVE-2011-0438 was first published in the National Vulnerability Database on March 15, 2011, with the most recent update on April 29, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2011-0438 actively exploited?

CVE-2011-0438 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 63.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

How do I remediate CVE-2011-0438?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2011-0438, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-2011-0438

📅 Published

🔄 Last Modified

🔗 References (12)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(4)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2011-0438?

🔗 Related CVEs(same CWE)

Same CWE

Published

Last Modified

References (12)

Frequently asked(4)

Related CVEs(same CWE)