cve.bz

CVE-2021-42550

6.6 mediumEPSS 4.8%

Medium (6.6). EPSS 4.8% chance of exploitation in the next 30 days. Fixed in ch.qos.logback:logback-core 1.2.9.

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.

Severity

CVSS 3.1

6.6 medium
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
EPSS
4.8% chance of exploitation in the next 30 days; higher than 91% of CVEs (scores of 2026-10-31)
CWE
CWE-502
Published
Modified
Record from
the NVD, synced

Affected

Packages (OSV)

AdvisoryEcosystemPackageAffectedFixed in
GHSA-668q-qrv7-99fmMavench.qos.logback:logback-core<1.2.91.2.9

References

Check your stackJSON