CVE-2024-2398

HIGHNVD 8.68.6—
EchelonGraph scoreMEDIUM confidence

Score 8.6 from GitHub Security Advisory (severity: HIGH) published 2024-03-27. NVD baseline CVSS 8.6; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Elevated
8.6
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 36%CVSS: 8.6Exploit: NoneExposed: 0

A fix is available — apply it.

When an application tells libcurl it wants to allow HTTP/2 server push, and the amount of received headers for the push surpasses the maximum allowed limit (1000), libcurl aborts the server push. When aborting, libcurl inadvertently does not free all the previously allocated headers and instead leaks the memory. Further, this error condition fails silently and is therefore not easily detected by an application.

CVSS v3
8.6
EG Score
8.6(medium)
EG Risk
70(Track)
EG Risk 70/100SSVC: 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 computed
Severity86% × 45%
Exploitation40% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS
98.3%
KEV
Not listed

Published

March 27, 2024

Last Modified

July 30, 2025

References (26)

Vendor Advisories for CVE-2024-2398(8)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(12)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulibcurl4-openssl-dev (7.81.0-1ubuntu1.16) @ jammy2026-05-24ubuntu
ubuntulibcurl4-openssl-dev (7.47.0-1ubuntu2.19+esm12) @ xenial2026-05-24ubuntu
ubuntulibcurl4t64 (8.5.0-2ubuntu10.1) @ noble2026-05-24ubuntu
redhatservice-interconnect/skupper-site-controller-rhel9:1.5.5-42024-12-16redhat
redhatservice-interconnect/skupper-site-controller-rhel9:1.4.7-32024-11-21redhat
redhatservice-interconnect/skupper-site-controller-rhel9:1.5.5-32024-09-30redhat
redhatservice-interconnect/skupper-site-controller-rhel9:1.4.7-22024-09-26redhat
redhatcurl-0:7.61.1-34.el8_10.22024-08-20redhat
redhatcurl-0:7.76.1-29.el9_4.12024-08-19redhat
redhatcurl-0:7.76.1-23.el9_2.72024-06-20redhat
redhatjbcs-httpd24-nghttp2-0:1.43.0-13.el7jbcs2024-05-07redhat
redhatjbcs-httpd24-curl2024-05-07redhat

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.

Weakness Classification(1)

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

Additional Vendor Advisories

(5)

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 10× in last 7d / 39× 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.

  1. 2026-07-23 02:34 UTCEG score recompute
  2. 2026-07-22 23:20 UTCEG score recompute
  3. 2026-07-22 14:07 UTCEPSS rescore
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  6. 2026-06-27 03:07 UTCEPSS rescore
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  8. 2026-06-26 16:39 UTCOSV refresh
  9. 2026-06-25 13:49 UTCEPSS rescore
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  35. 2026-06-08 23:45 UTCOSV refresh
  36. 2026-06-08 14:16 UTCEPSS rescore
  37. 2026-06-07 15:24 UTCEPSS rescore
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  39. 2026-06-06 13:46 UTCEPSS rescore
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  68. 2026-05-24 05:47 UTCEG score recompute
  69. 2026-05-24 05:47 UTCVendor advisory
  70. 2026-05-24 05:47 UTCGHSA enrichment

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2024-2398?
CVE-2024-2398 is a high vulnerability published on March 27, 2024. When an application tells libcurl it wants to allow HTTP/2 server push, and the amount of received headers for the push surpasses the maximum allowed limit (1000), libcurl aborts the server push. When aborting, libcurl inadvertently does not free all the previously allocated headers and instead…
When was CVE-2024-2398 disclosed?
CVE-2024-2398 was first published in the National Vulnerability Database on March 27, 2024, with the most recent update on July 30, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2024-2398 actively exploited?
CVE-2024-2398 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 98.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2024-2398?
CVE-2024-2398 has a CVSS v3 base score of 8.6 (NVD).
How do I remediate CVE-2024-2398?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2024-2398, 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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