CVE-2019-1010283: Univention Corporate Server univention-directory-notifier 12.0.1-3 and earlier is affected by: CWE-213: Intent

Q: How do I fix CVE-2019-1010283?

univention corporate server: upgrade to newer than 12.0.1-3. Exact commands for each OS are on this page.

Q: Is CVE-2019-1010283 being exploited?

CVE-2019-1010283 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2019-1010283 affect?

CVE-2019-1010283 affects univention corporate server. Severity is high (CVSS 7.5). Univention Corporate Server univention-directory-notifier 12.0.1-3 and earlier is affected by: CWE-213: Intentional Information Exposure. The impact is: Loss of Confidentiality. The component is: function data_on_connection() in src/callbac

Q: How urgent is CVE-2019-1010283?

Priority 55/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

This week

HIGH 7.5REMOTEUPGRADE

CVE-2019-1010283 is a high-severity flaw (CVSS 7.5) affecting univention corporate server. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Univention Corporate Server univention-directory-notifier 12.0.1-3 and earlier is affected by: CWE-213: Intentional Information Exposure. The impact is: Loss of Confidentiality. The component is: function data_on_connection() in src/callback.c. The attack vector is: network connectivity. The fixed version is: 12.0.1-4 and later.

Why this priority

High severity
Public exploit reference
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.4% (top 27%)
CISA exploited list	No
Weakness	CWE-213, CWE-200
Published	2019-07-17
Last modified	2026-06-17

Publisher (CNA): DWF · Vendor: univention

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2019-07-17 21:15 UTCPublished CVE record published
2026-06-17 02:09 UTCUpdated Record last modified

univention univention corporate server UPGRADE

Affected: <= 12.0.1-3

Fixed in: newer than 12.0.1-3

Safe to downgrade to: no unaffected older release

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2019-1010283?

univention corporate server: upgrade to newer than 12.0.1-3. Exact commands for each OS are on this page.

Is CVE-2019-1010283 being exploited?

CVE-2019-1010283 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2019-1010283 affect?

CVE-2019-1010283 affects univention corporate server. Severity is high (CVSS 7.5). Univention Corporate Server univention-directory-notifier 12.0.1-3 and earlier is affected by: CWE-213: Intentional Information Exposure. The impact is: Loss of Confidentiality. The component is: function data_on_connection() in src/callbac

How urgent is CVE-2019-1010283?

Priority 55/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

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References

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