boxscore/security
CVE · referencelatest edition

Reference page — cumulative record through Sunday, October 4, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2023-44487

CVE-2023-44487HIGH
n/a n/a — IETF HTTP/2
  AV  AC  PR  UI  S  C  I  A   CVSS     EPSS    %ile   KEV
   N   L   N   N  U  N  N  H    7.5   1.0000   100.0   YES
AFFECTED
  Product  Versions  Fixed
  n/a      n/a –     —
TIMELINE
  Sep 29  Reserved by mitre
  Oct 10  Added to CISA KEV, remediation due 2023-10-31
  Oct 10  Published (CNA: mitre)
  Aug 11  ENRICHED — CVE-2023-44487 (IETF HTTP/2). Received CVSS 7.5 and CPE data from NVD.
  Aug 11  EXPLOIT PUBLISHED — CVE-2023-44487 (IETF HTTP/2). Public exploit reference added.
CWE-400 · CNA: mitre · CVSS v3.1 · 173 references · NVD status: Analyzed · KEV due October 31, 2023

Description

The HTTP/2 protocol allows a denial of service (server resource consumption) because request cancellation can reset many streams quickly, as exploited in the wild in August through October 2023.

Lifecycle

Complete event history — 5 events, chronological
DateEventDetail
September 29, 2023ReservedReserved by mitre
October 10, 2023KEV ADDEDAdded to CISA KEV, remediation due 2023-10-31
October 10, 2023PublishedPublished (CNA: mitre)
August 11, 2026ENRICHEDENRICHED — CVE-2023-44487 (IETF HTTP/2). Received CVSS 7.5 and CPE data from NVD.
August 11, 2026EXPLOIT PUBLISHEDEXPLOIT PUBLISHED — CVE-2023-44487 (IETF HTTP/2). Public exploit reference added.

Affected

Affected products and packages — 1 row
VendorProduct / PackageEcosystemVersion introducedFixed
n/an/a—n/a—

Weaknesses

CWE-400

References (173)

Related

Authoritative record: CVE-2023-44487 at cve.org

Weaknesses: CWE-400

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2023-44487 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Sunday, October 4, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.