01 Record
CVE-2023-6481
Logback "receiver" DOS vulnerability CVE-2023-6378 incomplete fix
HighPUBLISHEDCNA: NCSC.ch
CNA base score7.1 CVSS v3.xCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
02 Description
Logback "receiver" DOS vulnerability CVE-2023-6378 incomplete fix
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 0.68% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 51.9% of scored records. A rank, not a probability.
- NVD base score
- 7.5 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- Moderate. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2023-12-04 08:35Z2 YR AGO
- Last updated
- 2024-08-02 08:28Z2 YR AGO
- Reserved
- 2023-12-04
- Assigning CNA
- NCSC.ch
- Record state
- PUBLISHED
- Severity
- High (CVSS 7.1)
- CNA CVSS vector
- CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
- Weaknesses
- CWE-400Uncontrolled Resource ConsumptionClass
- Data version
- 5.1
- Document digest
- 461a62919a9cb68e6d2ea093644417d6e13e6ed0234efbbb8f76c5ae65cb2f1e
05 Affected products
VendorProductVersionsPlatforms
06 References
- logback.qos.chhttps://logback.qos.ch/news.html#1.3.12
- logback.qos.chhttps://logback.qos.ch/news.html#1.3.14
07 Remediation
Only environments where logback receiver component is deployed may be vulnerable. In case a logback receiver is deployed, restricting connections to trustworthy clients or upgrading to logback version 1.4.14, 1.3.14, 1.2.13 or later will remedy the vulnerability. If you do not need to deploy logback-receiver, then please verify that you do not have any <receiver></receiver> entries in your configuration files.