How severe is CVE-2018-16883?

CVE-2018-16883 has a CVSS 3.x base score of 2.5, rated low severity. It is exploitable over local access with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2018-16883 being actively exploited?

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

What products are affected by CVE-2018-16883?

CVE-2018-16883 affects Fedoraproject Sssd. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-16883?

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

When was CVE-2018-16883 published?

CVE-2018-16883 was published on 2018-12-19 and last updated on 2026-06-17.

CVE-2018-16883

CVE-2018-16883 is a low-severity vulnerability in Fedoraproject Sssd with a CVSS 3.x base score of 2.5. 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-200.

Key facts

Severity: Low (CVSS 3.x base score 2.5)
CVSS v2: 2.1
EPSS exploit prediction: 0% (30th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-200
Affected product: Fedoraproject Sssd
Published: 2018-12-19
Last modified: 2026-06-17

Description

sssd versions from 1.13.0 to before 2.0.0 did not properly restrict access to the infopipe according to the "allowed_uids" configuration parameter. If sensitive information were stored in the user directory, this could be inadvertently disclosed to local attackers.

Frequently asked questions

What is CVE-2018-16883?: sssd versions from 1.13.0 to before 2.0.0 did not properly restrict access to the infopipe according to the "allowed_uids" configuration parameter. If sensitive information were stored in the user directory, this could be inadvertently disclosed to local attackers.
How severe is CVE-2018-16883?: CVE-2018-16883 has a CVSS 3.x base score of 2.5, rated low severity. It is exploitable over local access with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2018-16883 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (30th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-16883?: CVE-2018-16883 affects Fedoraproject Sssd. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-16883?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2018-16883 published?: CVE-2018-16883 was published on 2018-12-19 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:fedoraproject:sssd:*:*:*:*:*:*:*:*

More vulnerabilities in Fedoraproject Sssd

CVE-2022-4254 — High (CVSS 8.8): sssd: libsss_certmap fails to sanitise certificate data used in LDAP filters
CVE-2021-3621 — High (CVSS 8.8): A flaw was found in SSSD, where the sssctl command was vulnerable to shell command injection via the logs-fetch and…
CVE-2012-3462 — High (CVSS 8.8): A flaw was found in SSSD version 1.9.0. The SSSD's access-provider logic causes the result of the HBAC rule processing…
CVE-2023-3758 — High (CVSS 7.1): A race condition flaw was found in sssd where the GPO policy is not consistently applied for authenticated users. This…
CVE-2015-5292 — Medium (CVSS 6.8): Memory leak in the Privilege Attribute Certificate (PAC) responder plugin (sssd_pac_plugin.so) in System Security…
CVE-2026-12610 — Medium (CVSS 6.4): A flaw was found in sssd. When authenticating with a YubiKey, the SSSD PAM responder can crash due to a use-after-free…

All CVEs affecting Fedoraproject Sssd →

Other CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor) vulnerabilities

CVE-2026-27604 — Critical (CVSS 10.0): FOSSBilling is a free, open-source billing and client management system. Starting in version 0.5.4 and prior to version…
CVE-2026-40965 — Critical (CVSS 10.0): Cloud Foundry UAA versions v76.12.0 through v78.12.0 are vulnerable to a private key exposure. The server contains a…
CVE-2026-42826 — Critical (CVSS 10.0): Exposure of sensitive information to an unauthorized actor in Azure DevOps allows an unauthorized attacker to disclose…
CVE-2025-29270 — Critical (CVSS 10.0): Incorrect access control in the realtime.cgi endpoint of Deep Sea Electronics devices DSE855 v1.1.0 to v1.1.26 allows…
CVE-2025-61481 — Critical (CVSS 10.0): An issue in MikroTik RouterOS v.7.14.2 and SwOS v.2.18 exposes the WebFig management interface over cleartext HTTP by…
CVE-2025-53624 — Critical (CVSS 10.0): The Docusaurus gists plugin adds a page to your Docusaurus instance, displaying all public gists of a GitHub user.…

Browse all CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor) vulnerabilities →