CVE-2010-2940

The auth_send function in providers/ldap/ldap_auth.c in System Security Services Daemon (SSSD) 1.3.0, when LDAP authentication and anonymous bind are enabled, allows remote attackers to bypass the authentication requirements of pam_authenticate via an empty password.

Published: 2010-08-30 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2010-2940 is rated Moderate Risk (47.9/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 2.02%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2010-2940

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-28 2.06% 2.02% -0.04%
2 2026-06-15 0.11% 2.06% +1.95%
3 2026-04-12 — 0.11% —

Full EPSS history (9 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2010-2940

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.1 2.0 MEDIUM
AV:N/AC:H/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:H)
Exploitation requires uncommon or highly specific conditions.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 4.9 6.4 [email protected]

Weakness enumeration for CVE-2010-2940

OS Trackers for CVE-2010-2940

vendor priority summary link
debian not yet assigned CVE-2010-2940 not yet assigned priority: Debian including 1 source packages (sssd), 4 status rows across 4 suites (bookworm, bullseye, sid, trixie): resolved 4. https://security-tracker.debian.org/tracker/CVE-2010-2940
redhat high — https://access.redhat.com/security/cve/CVE-2010-2940
ubuntu medium CVE-2010-2940 medium priority: Ubuntu including 1 source packages (sssd), 13 status rows across 13 suites (dapper, hardy, jaunty, karmic, lucid, maverick, natty, oneiric, precise, quantal, raring, saucy, upstream): not-affected 7, DNE 3, ignored 2, released 1. https://ubuntu.com/security/CVE-2010-2940

Affected software / configurations for CVE-2010-2940

Vendor Product Version Raw CPE
fedoraproject sssd 1.3.0 cpe:2.3:a:fedoraproject:sssd:1.3.0:*:*:*:*:*:*:*

References for CVE-2010-2940

cvelogic Threat Intelligence