How severe is CVE-2011-0438?

CVE-2011-0438 has a CVSS 2.0 base score of 6.8, rated medium severity.

Is CVE-2011-0438 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (72nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2011-0438?

CVE-2011-0438 affects Arthurdejong Nss-pam-ldapd. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2011-0438?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2011-0438 published?

CVE-2011-0438 was published on 2011-03-15 and last updated on 2026-06-16.

CVE-2011-0438

CVE-2011-0438 is a medium-severity vulnerability in Arthurdejong Nss-pam-ldapd with a CVSS 2.0 base score of 6.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-287.

Key facts

Severity: Medium (CVSS 2.0 base score 6.8)
EPSS exploit prediction: 2% (72nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-287
Affected product: Arthurdejong Nss-pam-ldapd
Published: 2011-03-15
Last modified: 2026-06-16

Description

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.

Frequently asked questions

What is CVE-2011-0438?: 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.
How severe is CVE-2011-0438?: CVE-2011-0438 has a CVSS 2.0 base score of 6.8, rated medium severity.
Is CVE-2011-0438 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (72nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2011-0438?: CVE-2011-0438 affects Arthurdejong Nss-pam-ldapd. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2011-0438?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2011-0438 published?: CVE-2011-0438 was published on 2011-03-15 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:arthurdejong:nss-pam-ldapd:0.8.0:*:*:*:*:*:*:*

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