Description
In logback version 1.2.7 and prior versions, an attacker with the required privileges to edit configurations files could craft a malicious configuration allowing to execute arbitrary code loaded from LDAP servers.
Published: 2021-12-16
Score: 6.6 Medium
EPSS: 2.7% Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

No analysis available yet.

Remediation

Vendor Solution

upgrade to >=1.2.9 or >=1.3.0-alpha11

Tracking

Sign in to view the affected projects.

Advisories
Source ID Title
EUVD EUVD EUVD-2021-2454 In logback version 1.2.7 and prior versions, an attacker with the required privileges to edit configurations files could craft a malicious configuration allowing to execute arbitrary code loaded from LDAP servers.
Github GHSA Github GHSA GHSA-668q-qrv7-99fm Deserialization of Untrusted Data in logback
Ubuntu USN Ubuntu USN USN-7616-1 logback vulnerabilities
History

Tue, 24 Feb 2026 18:15:00 +0000

Type Values Removed Values Added
Title RCE from attacker with configuration edit priviledges through JNDI lookup RCE from attacker with configuration edit priviledges through JNDI lookup

Wed, 16 Jul 2025 13:45:00 +0000

Type Values Removed Values Added
Metrics epss

{'score': 0.02163}

epss

{'score': 0.03447}


Fri, 11 Jul 2025 13:45:00 +0000

Type Values Removed Values Added
Metrics epss

{'score': 0.01715}

epss

{'score': 0.02163}


Subscriptions

Netapp Cloud Manager Service Level Manager Snap Creator Framework
Qos Logback
Redhat Jboss Enterprise Bpms Platform Jboss Enterprise Brms Platform Jboss Fuse Satellite
Siemens Sinec Nms
cve-icon MITRE

Status: PUBLISHED

Assigner: NCSC.ch

Published:

Updated: 2024-08-04T03:38:49.194Z

Reserved: 2021-10-15T00:00:00.000Z

Link: CVE-2021-42550

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2021-12-16T19:15:08.297

Modified: 2024-11-21T06:27:47.313

Link: CVE-2021-42550

cve-icon Redhat

Severity : Moderate

Publid Date: 2021-12-16T00:00:00Z

Links: CVE-2021-42550 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses