CVE-2021-42550

MediumCVSS 6.6/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.1 6.6/10CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-502

Affected software

Vendor	Product	Versions
QOS.ch	logback	>= unspecified, < 1.2.9; >= unspecified, < 1.3.0-alpha11

References

http://logback.qos.ch/news.htmlVendor Advisory
http://packetstormsecurity.com/files/167794/Open-Xchange-App-Suite-7.10.x-Cross-Site-Scripting-Command-Injection.htmlExploit, Third Party Advisory, VDB Entry
http://seclists.org/fulldisclosure/2022/Jul/11Mailing List, Third Party Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-371761.pdfThird Party Advisory
https://github.com/cn-panda/logbackRceDemoExploit, Third Party Advisory
https://jira.qos.ch/browse/LOGBACK-1591Exploit, Issue Tracking, Patch, Third Party Advisory
https://security.netapp.com/advisory/ntap-20211229-0001/Third Party Advisory
http://logback.qos.ch/news.htmlVendor Advisory
http://packetstormsecurity.com/files/167794/Open-Xchange-App-Suite-7.10.x-Cross-Site-Scripting-Command-Injection.htmlExploit, Third Party Advisory, VDB Entry
http://seclists.org/fulldisclosure/2022/Jul/11Mailing List, Third Party Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-371761.pdfThird Party Advisory
https://github.com/cn-panda/logbackRceDemoExploit, Third Party Advisory
https://jira.qos.ch/browse/LOGBACK-1591Exploit, Issue Tracking, Patch, Third Party Advisory
https://security.netapp.com/advisory/ntap-20211229-0001/Third Party Advisory

Timeline

Published: Dec 16, 2021
Last modified: Jun 17, 2026
NVD status: Modified

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