CVE-2024-23684

HIGHNVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.5 under NVD CVSS v3. EPSS exploit probability: 0.9%, top 44% 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).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
7.5
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 1%CVSS: 7.5Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

Inefficient algorithmic complexity in DecodeFromBytes function in com.upokecenter.cbor Java implementation of Concise Binary Object Representation (CBOR) versions 4.0.0 to 4.5.1 allows an attacker to cause a denial of service by passing a maliciously crafted input. Depending on an application's use of this library, this may be a remote attacker.

CVSS v3
7.5
EG Score
7.5(medium)
EG Risk
—
EPSS
56.3%
KEV
Not listed

Published

January 19, 2024

Last Modified

July 14, 2026

Advisory Details (3)

Auto-updated Jul 15, 2026
Patch available. Sources: github.
generic

upokecenter CBOR Denial of Service | Advisories | VulnCheck

https://vulncheck.com/advisories/vc-advisory-GHSA-fj2w-wfgv-mwq6
github Patch Available

Denial of service in CBOR library · Advisory · peteroupc/CBOR-Java · GitHub

Affected: version 4.5.1. Users should use the latest version of this library. (The latest

https://github.com/peteroupc/CBOR-Java/security/advisories/GHSA-fj2w-wfgv-mwq6
github Patch Available

Denial of service in CBOR library · CVE-2024-23684 · GitHub Advisory Database · GitHub

Affected: version 4.5.1. Users should use the latest version of this library. (The latest

https://github.com/advisories/GHSA-fj2w-wfgv-mwq6

Affected Packages

(1 across 1 ecosystem)
Maven(1)
PackageVulnerable rangeFixed inDependents
com.upokecenter:cbor4.0.0 ... 4.5 (13 versions)4.5.1—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 11× in last 7d / 46× 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.

Showing the most recent 100 of 105 total refreshes for this CVE.

  1. 2026-07-22 23:20 UTCEG score recompute
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Frequently asked(5)

What is CVE-2024-23684?
CVE-2024-23684 is a high vulnerability published on January 19, 2024. Inefficient algorithmic complexity in DecodeFromBytes function in com.upokecenter.cbor Java implementation of Concise Binary Object Representation (CBOR) versions 4.0.0 to 4.5.1 allows an attacker to cause a denial of service by passing a maliciously crafted input. Depending on an application's use…
When was CVE-2024-23684 disclosed?
CVE-2024-23684 was first published in the National Vulnerability Database on January 19, 2024, with the most recent update on July 14, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2024-23684 actively exploited?
CVE-2024-23684 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 56.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2024-23684?
CVE-2024-23684 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2024-23684?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2024-23684, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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