What’s Vulnerable › Vulnerabilities

CVE-2023-6378: Logback "receiver" DOS vulnerability

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.9% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-11-29 · updated 2026-06-17
• Weakness: CWE-502

Description

A serialization vulnerability in logback receiver component part of logback version 1.4.11 allows an attacker to mount a Denial-Of-Service attack by sending poisoned data.

Affected products

• Qos Logback: from 1.2.0 before 1.2.13; from 1.3.0 before 1.3.12; from 1.4.0 before 1.4.12 — fixed in 1.2.13, 1.3.12, 1.4.12

How to fix

Upgrade to a fixed version: Qos Logback 1.2.13, 1.3.12, 1.4.12. Check the vendor advisory for mitigations.

References

• https://logback.qos.ch/news.html#1.3.12
• https://logback.qos.ch/news.html#1.3.12
• https://security.netapp.com/advisory/ntap-20241129-0012/

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