CVE-2011-1758

The krb5_save_ccname_done function in providers/krb5/krb5_auth.c in System Security Services Daemon (SSSD) 1.5.x before 1.5.7, when automatic ticket renewal and offline authentication are configured, uses a pathname string as a password, which allows local users to bypass Kerberos authentication by listing the /tmp directory to obtain the pathname.

Published: 2011-05-26 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2011-1758 is rated Low Risk (24/100): CVSS Low severity, with low exploitation likelihood (EPSS 0.34%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

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-2011-1758

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 2026-06-15 0.05% 0.34% +0.29%
2 2025-03-30 0.07% 0.05% -0.02%
3 2025-03-29 — 0.07% —

Full EPSS history (5 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2011-1758

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
3.7 2.0 LOW
AV:L/AC:H/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:L)
Requires local access to the target system.
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.
 1.9 6.4 [email protected]

Weakness enumeration for CVE-2011-1758

OS Trackers for CVE-2011-1758

vendor priority summary link
debian unimportant CVE-2011-1758 unimportant 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-2011-1758
suse medium CVE-2011-1758 severity moderate: SUSE including 235 source package names (libipa_hbac-devel-1.11.5.1-14.1, libipa_hbac-devel-1.11.5.1-5.20, …), 345 product×package rows across 30 product lines (SUSE Linux Enterprise Desktop 12, SUSE Linux Enterprise Desktop 12 SP1, … (30 product lines)): Fixed 345. https://www.suse.com/security/cve/CVE-2011-1758/
ubuntu high CVE-2011-1758 high priority: Ubuntu including 1 source packages (sssd), 7 status rows across 7 suites (dapper, hardy, lucid, maverick, natty, oneiric, upstream): not-affected 4, DNE 2, released 1. https://ubuntu.com/security/CVE-2011-1758

Affected software / configurations for CVE-2011-1758

Vendor Product Version Raw CPE
fedoraproject sssd 1.5.0 cpe:2.3:a:fedoraproject:sssd:1.5.0:*:*:*:*:*:*:*
fedoraproject sssd 1.5.1 cpe:2.3:a:fedoraproject:sssd:1.5.1:*:*:*:*:*:*:*
fedoraproject sssd 1.5.2 cpe:2.3:a:fedoraproject:sssd:1.5.2:*:*:*:*:*:*:*
fedoraproject sssd 1.5.3 cpe:2.3:a:fedoraproject:sssd:1.5.3:*:*:*:*:*:*:*
fedoraproject sssd 1.5.4 cpe:2.3:a:fedoraproject:sssd:1.5.4:*:*:*:*:*:*:*
fedoraproject sssd 1.5.5 cpe:2.3:a:fedoraproject:sssd:1.5.5:*:*:*:*:*:*:*
fedoraproject sssd 1.5.6 cpe:2.3:a:fedoraproject:sssd:1.5.6:*:*:*:*:*:*:*
fedoraproject sssd 1.5.6.1 cpe:2.3:a:fedoraproject:sssd:1.5.6.1:*:*:*:*:*:*:*

References for CVE-2011-1758

cvelogic Threat Intelligence