A serialization vulnerability in logback receiver component part of logback version 1.4.13, 1.3.13 and 1.2.12 allows an attacker to mount a Denial-Of-Service attack by sending poisoned data.
CVE-2023-6481
This high-severity CVE scores 7.5 under NVD CVSS v3. EPSS exploit probability: 0.7%, top 51% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- High severity, but no confirmed exploitation yet
A fix is available — apply it.
- CVSS v3
- 7.5
- EG Score
- 7.5(medium)
- EG Risk
- 39(Track)EG Risk 39/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity75% × 45%Exploitation1% × 40%Automatability30% × 15%Action: Routine — remediate on your standard cadence. - EPSS
- 48.7%
- KEV
- Not listed
Published
December 4, 2023
Last Modified
June 17, 2026
References (4)
- vulnerability@ncschttps://logback.qos.ch/news.html#1.3.12
- vulnerability@ncschttps://logback.qos.ch/news.html#1.3.14
- af854a3a-2127-422b-91ae-364da2661108https://logback.qos.ch/news.html#1.3.12
- af854a3a-2127-422b-91ae-364da2661108https://logback.qos.ch/news.html#1.3.14
Vendor Advisories for CVE-2023-6481(3)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
- RHSA-2024:3354Red Hat Product SecurityHigh
Red Hat Security Advisory: Red Hat Fuse 7.13.0 release and security update
- RHSA-2024:1353Red Hat Product SecurityHigh
Red Hat Security Advisory: Red Hat Process Automation Manager 7.13.5 security update
- RHSA-2024:0843Red Hat Product SecurityCritical
Red Hat Security Advisory: Release of OpenShift Serverless 1.31.1
Patch Availability(3)
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| redhat | logback | 2024-05-23 | redhat |
| redhat | patch | 2024-03-18 | redhat |
| redhat | openshift-serverless-1-tech-preview/logic-swf-devmode-rhel8:1.31.0-4 | 2024-02-15 | redhat |
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
Affected Packages
(1 across 1 ecosystem)
Maven(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| ch.qos.logback:logback-core | 1.2.12 | 1.2.13 | — |
Additional Vendor Advisories
(2)
Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.
Data Freshness Timeline
(refreshed 13× in last 7d / 49× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-23 02:30 UTCEG score recompute
- 2026-07-22 23:17 UTCEG score recompute▲ 0.40
- 2026-07-22 14:07 UTCEPSS rescore
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- 2026-07-16 17:01 UTCEPSS rescore
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- 2026-07-15 02:10 UTCOSV refresh
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- 2026-06-24 06:32 UTCNVD updateCVSS v3 → 7.5
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- 2026-06-09 13:47 UTCOSV refresh
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- 2026-05-24 12:54 UTCEG score recompute
- 2026-05-24 12:54 UTCVendor advisory
Related CVEs(same vendor)
Frequently asked(5)
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Dependency Blast Radius
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