How severe is CVE-2011-1758?

CVE-2011-1758 has a CVSS 2.0 base score of 3.7, rated low severity.

Is CVE-2011-1758 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (26th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2011-1758?

CVE-2011-1758 primarily affects Fedoraproject Sssd. In total, 8 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2011-1758?

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

When was CVE-2011-1758 published?

CVE-2011-1758 was published on 2011-05-26 and last updated on 2026-06-16.

CVE-2011-1758

CVE-2011-1758 is a low-severity vulnerability in Fedoraproject Sssd with a CVSS 2.0 base score of 3.7. 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: Low (CVSS 2.0 base score 3.7)
EPSS exploit prediction: 0% (26th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-287
Affected product: Fedoraproject Sssd
Published: 2011-05-26
Last modified: 2026-06-16

Description

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.

Frequently asked questions

What is 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.
How severe is CVE-2011-1758?: CVE-2011-1758 has a CVSS 2.0 base score of 3.7, rated low severity.
Is CVE-2011-1758 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (26th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2011-1758?: CVE-2011-1758 primarily affects Fedoraproject Sssd. In total, 8 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2011-1758?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2011-1758 published?: CVE-2011-1758 was published on 2011-05-26 and last updated on 2026-06-16.

References

Affected products (8)

cpe:2.3:a:fedoraproject:sssd:1.5.0:*:*:*:*:*:*:*
cpe:2.3:a:fedoraproject:sssd:1.5.1:*:*:*:*:*:*:*
cpe:2.3:a:fedoraproject:sssd:1.5.2:*:*:*:*:*:*:*
cpe:2.3:a:fedoraproject:sssd:1.5.3:*:*:*:*:*:*:*
cpe:2.3:a:fedoraproject:sssd:1.5.4:*:*:*:*:*:*:*
cpe:2.3:a:fedoraproject:sssd:1.5.5:*:*:*:*:*:*:*
cpe:2.3:a:fedoraproject:sssd:1.5.6:*:*:*:*:*:*:*
cpe:2.3:a:fedoraproject:sssd:1.5.6.1:*:*:*:*:*:*:*

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Other CWE-287 (Improper Authentication) vulnerabilities

CVE-2026-45480 — Critical (CVSS 10.0): Improper authentication in Azure Active Directory allows an unauthorized attacker to elevate privileges over a network.
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CVE-2026-10611 — Critical (CVSS 10.0): An authentication bypass vulnerability exists in MISP when LDAP mixed authentication is enabled with OTP enforcement.…
CVE-2026-47280 — Critical (CVSS 10.0): Improper authentication in Azure Resource Manager (ARM) allows an unauthorized attacker to elevate privileges over a…
CVE-2026-42822 — Critical (CVSS 10.0): Improper authentication in Azure Local Disconnected Operations allows an unauthorized attacker to elevate privileges…
CVE-2026-20182 — Critical (CVSS 10.0): May 2026: This security advisory provides the details and fix information for a vulnerability that was discovered and…

Browse all CWE-287 (Improper Authentication) vulnerabilities →