How severe is CVE-2023-38994?

CVE-2023-38994 has a CVSS 3.x base score of 7.9, rated high severity. It is exploitable over local access with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2023-38994 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (27th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-38994?

CVE-2023-38994 affects Univention Univention Corporate Server. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-38994?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2023-38994 published?

CVE-2023-38994 was published on 2023-10-31 and last updated on 2026-06-17.

CVE-2023-38994

CVE-2023-38994 is a high-severity vulnerability in Univention Univention Corporate Server with a CVSS 3.x base score of 7.9. 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-668.

Key facts

Severity: High (CVSS 3.x base score 7.9)
EPSS exploit prediction: 0% (27th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-668
Affected product: Univention Univention Corporate Server
Published: 2023-10-31
Last modified: 2026-06-17

Description

The 'check_univention_joinstatus' prometheus monitoring script (and other scripts) in UCS 5.0-5 revealed the LDAP plaintext password of the machine account in the process list allowing attackers with local ssh access to gain higher privileges and perform followup attacks. By default, the configuration of UCS does not allow local ssh access for regular users.

Frequently asked questions

What is CVE-2023-38994?: The 'check_univention_joinstatus' prometheus monitoring script (and other scripts) in UCS 5.0-5 revealed the LDAP plaintext password of the machine account in the process list allowing attackers with local ssh access to gain higher privileges and perform followup attacks. By default, the configuration of UCS does not allow local ssh access for regular users.
How severe is CVE-2023-38994?: CVE-2023-38994 has a CVSS 3.x base score of 7.9, rated high severity. It is exploitable over local access with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2023-38994 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (27th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-38994?: CVE-2023-38994 affects Univention Univention Corporate Server. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-38994?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2023-38994 published?: CVE-2023-38994 was published on 2023-10-31 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:univention:univention_corporate_server:5.0:*:*:*:*:*:*:*

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