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CVE-2011-1561

21
FAUCET Score

CVE-2011-1561 describes an authentication bypass vulnerability in the LDAP login feature of IBM AIX 6.1, specifically in bos.rte.security 6.1.6.4 when ldap_auth is enabled. Remote attackers can exploit this by providing any password during a login attempt. With a CVSS score of 6.8, this vulnerability is of medium severity, allowing for potential compromise of confidentiality, integrity, and availability with moderate attack complexity. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
6.1CPE matchmatch criteria
cpe:2.3:o:ibm:aix:6.1:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

6.8MEDIUM

AV:N/AC:M/Au:N/C:P/I:P/A:P

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
2.04%
Probability of exploitation in next 30 days
EPSS Percentile
79.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0204 is in the 65th percentile among its peer group of 19,955 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

aix.software.ibm.com / aix/efixes/security/ldapauth_advisory.asc
secunia.com / advisories/43968
Vendor Advisory
securitytracker.com / id
www-01.ibm.com / support/docview.wss
vupen.com / english/advisories/2011/0836
Vendor Advisory