How severe is CVE-2011-1561?

CVE-2011-1561 has a CVSS 2.0 base score of 6.8, rated medium severity.

Is CVE-2011-1561 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2011-1561?

CVE-2011-1561 affects Ibm Aix. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2011-1561?

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

When was CVE-2011-1561 published?

CVE-2011-1561 was published on 2011-04-05 and last updated on 2026-06-16.

CVE-2011-1561

CVE-2011-1561 is a medium-severity vulnerability in Ibm Aix 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% (79th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-287
Affected product: Ibm Aix
Published: 2011-04-05
Last modified: 2026-06-16

Description

The LDAP login feature in bos.rte.security 6.1.6.4 in IBM AIX 6.1, when ldap_auth is enabled in ldap.cfg, allows remote attackers to bypass authentication via a login attempt with an arbitrary password.

Frequently asked questions

What is CVE-2011-1561?: The LDAP login feature in bos.rte.security 6.1.6.4 in IBM AIX 6.1, when ldap_auth is enabled in ldap.cfg, allows remote attackers to bypass authentication via a login attempt with an arbitrary password.
How severe is CVE-2011-1561?: CVE-2011-1561 has a CVSS 2.0 base score of 6.8, rated medium severity.
Is CVE-2011-1561 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2011-1561?: CVE-2011-1561 affects Ibm Aix. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2011-1561?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2011-1561 published?: CVE-2011-1561 was published on 2011-04-05 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:o:ibm:aix:6.1:*:*:*:*:*:*:*

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